How can you cut into a 110 mm sewer pipe, available methods
It is well known that any plumbing work is one of the most highly paid, although many of them can be carried out independently, saving considerable money. Operations that are easy to do with your own hands without using a special tool include cutting into a 110 mm sewer pipe.
There are several ways to connect to the sewer; the methodology is different for metal and plastic pipelines. When deciding how to cut into a sewer pipe, it is also necessary to study the technology for connecting to vertical and horizontal lines.
Rice. 1 Types of fittings for connecting pipe parts
Reasons for tapping into the sewer system
Entry into the sewer is necessary in the following cases:
- If you need to connect a new plumbing fixture. This could be a washing machine or dishwasher, sink, toilet or bidet, the outlet pipes of which are connected to a line of a larger diameter.
- Transferring previously installed plumbing equipment to another location. The situation often arises during redevelopment, installation of a new vent riser, or separation of combined sanitary facilities.
- Connecting a private house to the central sewer system, which may require coordination of installation time with utility services.
Preparatory stage - recommendations
They cut into a plastic sewer pipe after determining the methodology and purchasing the necessary plumbing components and parts.
You should purchase components taking into account the basic rule - the pipeline running from the plumbing fixtures to a horizontal line must have the most obtuse bend angle possible - this greatly simplifies its cleaning from blockages and normalizes operation when different water flows collide. The pipes that connect to the riser enter it at a right angle (in plumbing this is 87 degrees).
Also, when choosing components, you should take into account the placement of the toilet outlet - it can be located in a horizontal plane or obliquely, at an approximate angle of 45 degrees to the horizontal. Selecting components for connecting a toilet with an inclined outlet pipe is not difficult; in the case of a straight channel, you may need an outlet with an offset center (eccentric).
When working during the daytime, related to cutting the riser, it is better to first ask the neighbors above not to use the sewer for some time.
Rice. 2 Insertion into a sewer riser - tool
Required tools and supplies
The advantage of sewerage installation is its relative simplicity - the entire system is assembled from ready-made standard units of the same size, sealing is ensured by built-in gaskets, and no special equipment is required for installation. When cutting, the following household tools and consumables are usually used:
- Hacksaw or grinder. During the assembly process, the main operation using a tool is cutting elements made of plastic or metal. In the first case, a simple hacksaw with a fine tooth is enough to cut any materials; you can use a grinder with a disk for stone or metal; cast iron parts can also be cut using the latter method.
- Crowns. For cutting into a 110 mm pipe. make a 50 mm hole. This operation can be performed in plastic using inexpensive crowns of the specified size; for cutting holes in metal, there are also bimetallic crowns, the cost of which is quite high. Holes in cast iron can be made with a regular metal drill or a gas cutter.
- Adjustable wrench or wrench. The tool will be needed when using the adapter as a pipeline penetration system.
- File or sandpaper. When cutting water pipes, it is necessary to get rid of the burrs that remain inside - this can lead to a blockage. To clean protruding surfaces outside and inside the end, use a file, sandpaper, or a painting knife.
- Sealant. To facilitate the operations of connecting pipeline components and sealing joints, laundry soap and sealants are used.
Rice. 3 Various cases of insertion
Methods of cutting into sewers
The sewer pipe to which the plumbing equipment is connected can be located vertically or horizontally. Methods of cutting in with different line locations at 110 mm. are no different; they are divided into main types: correct and incorrect.
The right way
To carry out work in a plastic pipeline, standard plumbing parts are used: tees, regular and expansion couplings. The method consists of the following operations:
- Measure the length of the riser, which must be cut taking into account the dimensions of the mounted parts. It should be equal to the size of the tee and expansion coupling, taking into account the depth of the mounting sockets.
- The pipe is cut in the right places, its outer and inner edges are protected.
- Coat all parts with silicone grease and insert them into the cut in a certain order. There are several installation options:
- The tee, which is used to insert into the system, is fixed in the following way: the lower part of the tee is connected to the riser with an adapter coupling with rubber sealing rings, the upper part is secured with a compensation coupling. This technology is used for installation in vertical risers.
- With the second method, the outlet is located in the compensator itself, and there is no need to use an extra part in the form of a tee. Typically, the lead is located at an angle of 45 degrees to the center line of the compensator - this allows this method to be effectively used for cutting into horizontal sections.
Rice. 4 The main parts for correct tapping are an oblique bend, a tee, an expansion joint and a coupling
The correct method can be connected to a 110mm line. pipes that match in size or 50 mm bends.
In the case of steel or cast iron sewer pipes, they are shortened to fit the tee for insertion, which is then welded to the break point with a welding machine.
Wrong way
This technique is designed for cutting into an existing sewer line without completely cutting the pipeline, but using cutting, when a hole of the required diameter is made in the pipe.
Then the outlet pipe is placed over the cut hole and its body is secured. When carrying out work, special adapters or saddles are used, through which the sewer line is connected to the outlets of plumbing fixtures.
Insertion into a sewer pipe 110 mm. with your own hands
Although cast iron pipes are practically never used anywhere, in many houses they have been standing in risers without replacement for many decades. To work with modern pipelines, adapters made of cast iron are put on or a plunge is made. Working with plastic is much easier; all connections can be easily made with your own hands without a special tool; the most difficult thing is not to make mistakes in the measurements.
Rice. 5 Insertion into a plastic sewer riser
Inserting a plastic pipe into a vertical riser using the correct method
Before making an insert into a PVC pipe, if the procedure is carried out during the day in an apartment building, it is advisable to ask the residents above not to use the sewer system at this time. You can rely on luck and not waste time on warnings - the whole process will take no more than 10 minutes, and take a bucket as a safety net. The procedure for installing a tee and compensator consists of the following steps:
- The riser is released from its fastening in the walls - it will move to the side.
- A part of the riser is cut out with a grinder or a hacksaw to the size of the compensator, the edges outside and inside are processed with a file, sandpaper or an angle grinder disc. To avoid trouble, the upper end is placed in a bucket.
- The upper and lower sockets of the riser are coated with lubricant, and a transition coupling is placed on the lower part to connect the tee. If the tee is changed, the old mounting socket is used for it, and the lower adapter coupling is not needed.
- Place the compensator on the upper end and move it up until it stops.
- The tee is installed in the adapter coupling or the old socket; before this, its surface is lubricated with silicone.
- Lower the compensator down until it is firmly fixed in the upper socket of the tee.
- The riser is secured by screwing it through clamps to the walls, and the pipeline is connected to the line.
Source: https://montagtrub.ru/vrezka-v-kanalizatsionnuyu-trubu-110-mm-sposobyi-komplektuyushhie/
Insertion into a sewer pipe | Pipes
It is well known that any plumbing work is one of the most highly paid, although many of them can be carried out independently, saving considerable money. Operations that are easy to do with your own hands without using a special tool include cutting into a 110 mm sewer pipe.
There are several ways to connect to the sewer; the methodology is different for metal and plastic pipelines. When deciding how to cut into a sewer pipe, it is also necessary to study the technology for connecting to vertical and horizontal lines.
Rice. 1 Types of fittings for connecting pipe parts
Entry into the sewer is necessary in the following cases:
- If you need to connect a new plumbing fixture. This could be a washing machine or dishwasher, sink, toilet or bidet, the outlet pipes of which are connected to a line of a larger diameter.
- Transferring previously installed plumbing equipment to another location. The situation often arises during redevelopment, installation of a new vent riser, or separation of combined sanitary facilities.
- Connecting a private house to the central sewer system, which may require coordination of installation time with utility services.
Preparatory stage - recommendations
They cut into a plastic sewer pipe after determining the methodology and purchasing the necessary plumbing components and parts.
You should purchase components taking into account the basic rule - the pipeline running from the plumbing fixtures to a horizontal line must have the most obtuse bend angle possible - this greatly simplifies its cleaning from blockages and normalizes operation when different water flows collide. The pipes that connect to the riser enter it at a right angle (in plumbing this is 87 degrees).
Also, when choosing components, you should take into account the placement of the toilet outlet - it can be located in a horizontal plane or obliquely, at an approximate angle of 45 degrees to the horizontal. Selecting components for connecting a toilet with an inclined outlet pipe is not difficult; in the case of a straight channel, you may need an outlet with an offset center (eccentric).
When working during the daytime, related to cutting the riser, it is better to first ask the neighbors above not to use the sewer for some time.
Rice. 2 Insertion into a sewer riser - tool
Instructions for inserting into a sewer pipe
In some cases, it is necessary to connect a separate outlet to the sewer section. The specifics of the process depend on the material, available accessories and type of system.
Please note that it is necessary to make an insert into the sewer pipe only in accordance with the technology used; only in this case can the quality of the connection and its long-term operation be guaranteed without the need for repairs.
If you carry out the work in accordance with the requirements and instructions, it is quite possible for a beginner and a person without experience.
Depending on the time of laying the sewer, the materials used may differ. Old sewer systems are made of metal carriers, the connection to which is carried out physically. In other words, the metal is cut and an additional output is added using welding (including cold welding) or through a tee.
This is the so-called economy option for systems that are in normal condition. If the area is heavily damaged by rust or dirty, it makes sense to replace the entire pipeline along with the connection.
Pipe tapping
From quite obvious advice, let's get down to business - let's look at the question of how to make an insertion into a cast-iron sewer pipe. In practice, it is not uncommon to have to not only cut into, but connect the pipeline with a metal-plastic section. In practice, the reliability of such work leaves much to be desired. At the same time, materials have been proposed that can be used to effectively join metal materials and “plastic”. Let's talk about connecting to a sewer pipe.
For these purposes, a mortise clamp is used, which is an adapter between a diameter of 110 mm and the selected size. Mortise clamps are sold in a wide range and allow you to switch to almost any diameter. The accessory is selected depending on the type of sewer; there are models that allow cutting under pressure.
Universal mortise clamp
For domestic needs, the usual flange version is suitable. It holds the connection securely and does not require maintenance. If repairs to the area are also required, use an overlapping model.
Instructions:
- Clean the area of rust.
- Drill a hole of the required diameter.
- Install the clamp elbow.
- Tighten the nuts simultaneously and evenly.
Similar work can be done using a coupling saddle. This is a reliable, although more expensive, mount. If you don't want to incur costs, make an insert that switches to "plastic". At the same time, mortise couplings and saddles will provide high-quality and extremely durable inserts that do not require repairs throughout the entire service life. They are applicable, including for wells.
Saddle coupling
There are products from Russian and foreign manufacturers on the market. The recommendations of many craftsmen concern Jimten push-in couplings, which provide the required quality of connection at a fairly low price.
Insertion into a cast iron pipe with a transition to a section made of plastic
The sequence of work for connecting to a cast iron pipe with a high-quality transition to a new section:
- This is how a connection is made to systems of standard sizes; the diameter of the sewer section is, respectively, 110 mm. In this case, drilling a hole with a “crown” is labor-intensive, so we recommend making a marking and a crosswise cut using a grinder, then removing the internal segments of the joint. The hole will turn out to be in the form of a diamond, but this does not interfere with the quality of the work.
- Next, the fastening is done using unigum mastic or similar; a layer up to 5 mm thick and 3-5 cm wide is applied around the hole.
- If there is no jimten drain, it can be cut from a plastic sewer element with a 50 mm adapter.
- The cuff is attached to the mastic. Tighten it with clamps.
The proposed method provides a reliable and aesthetic solution to the problem of the transition between the old and new sections of PVC sewerage. It is recommended by experts for open areas, for example, to connect to a sun lounger in the basement. Such a connection must be checked periodically, although the materials used guarantee a durable connection that does not require additional maintenance.
Insertion into the plastic area and fixation with glue
Instructions for connecting to PVC:
- Determine the center of the hole with the adapter you will use. Note that inserts are often made with a smaller diameter than the classic sewer size of 110 mm. For washing machines, bathtubs, washbasins, 50 mm is enough.
- Using a special attachment with a diameter of 50 mm, make a hole with a drill.
- Clean out the hole using a paper knife or other sharp object.
- Be sure to thoroughly remove dust and dirt afterwards.
- Degrease the surface using adhesive sealant.
- Mark the outline of the overlay on the base using a pencil.
- Apply special adhesive sealant to the outer surface in two passes.
- Also apply adhesive-sealant to the part, along the contour from the inside.
- Connect the pipeline and the part to each other.
- Secure temporarily with masking tape.
- Apply glue to the inner surface of the terminal in the glued part, coat it well with a layer of 2-3 mm.
- Insert the adapter elbow to which the lead will be attached.
- Remove excess glue.
- After the glue has dried, remove the tape and finish installing the outlet into the sewer from the device.
Types of plastic pipe connections
Connection to the sewer below ground level
To insert an additional sewer outlet into a well below ground level as in the photo, another method is used, namely tees at 45 and 90 degrees. This connection will allow you to connect a summer kitchen or bathhouse to the sewer.
To work you will need:
- tee with the required slope and outlet diameter;
- coupling with which it will be connected to the pipeline.
Treating the embedded part of the pipe with sealant
Instructions:
- Make a well to the connection point; under the installation site you need a recess into which the liquid will drain.
- Make marks according to the size of the tee.
- Cut the pipeline using a grinder.
- Use a grinder to process the cuts.
- Clean away any dirt and chips.
- Treat the edges of the coupling with sealant and place it on the pipeline.
- Put on the tee and push the coupling, make a branch connection, and be sure to treat all joints with glue-sealant.
For connection to a plastic sewer with a 45 or 90 degree tee, watch the video:
You can see in detail how this is done in the video. Connection to a cast iron pipe is carried out using a 110 mm mortise coupling. The Jimten brand also has sewer drains that allow you to cut in and switch to PVC without hassle, without cutting off the sewer section. This is one of a limited number of brands that produce such devices.
Source: http://TrubyGid.ru/vrezke-kanalizacii
Insertion into a 110 mm sewer pipe - methods and features
Tapping into a sewer pipe will require the appropriate tool depending on the method and material of the pipes. We’ll look at how to cut into a plastic or cast iron pipe in more detail in this article!
Situations often arise when it is necessary to insert a pipe into an already existing sewer system to organize drainage from a new household appliance. Naturally, you can just get by with a tee. However, this approach can be implemented only in the case when an insertion is made into a cast-iron sewer pipe 110. In a system constructed from PVC pipes, one tee is not enough.
Tap-in technology
There are several options to solve this problem.
Tapping using a tee
As noted earlier, this option is used in 90 percent of cases in a situation where the tee is mounted on a metal pipe. The thing is that to strengthen the junction of two parts you will have to use welding.
And at the initial stage of work, it is necessary to saw the pipe and cut a piece, which in its parameters will most accurately resemble the tee used for installation.
It is worth considering that the tee in the considered insertion method will be mounted in the form of a coupling on a section of pipe.
When work needs to be carried out on a system made using PVC pipes. One pipe should be replaced with several short sections, between which a piece of pipe equipped with a pipe will be placed. It is into this part that additional equipment will be connected. The problem with this installation is the connection using sockets, which are intended for inserting a pipe.
Insertion into PVC pipes
You can install sewer pipes, the installation of which used plastic pipes, on your own. To solve the problem of cutting into a plastic sewer pipe, you will need:
- Prepare a piece of pipe along with a pipe of the required diameter.
- Prepare the workpiece. This stage of work involves leaving part of the part and the pipe extending from it. The distance is calculated so that the insertion point into the main part is reliably covered.
- A hole is drilled in the pipe with a diameter identical to the width of the pipe.
- Sealant is applied to the inside of the flange. The outer side of the part near the hole is also coated.
- The flange is placed on the pipe and tightened tightly along the edges with clamps. The fastening should be tightened gradually until the sealant begins to ooze from under the flange. Excess grease should be removed.
If the sewer pipe is inserted in places with little liquid pressure, then there is no need to use clamps. Here it is enough to connect the flange to the pipe with ordinary electrical tape.
Insertion into a metal pipe
If you need to insert metal parts into a sewer riser, it is best to use a ready-made tee that has a slightly larger diameter than the pipe. The part without the pipe must first be separated from the tee.
However, there are often situations when you have to prepare the flange yourself. To do this, you need to purchase a pipe whose internal circumference will coincide with the external circumference value of the connection pipe.
Next, the part is cut longitudinally, a hole is drilled in it and a pipe is welded. To fully answer the problem of how to cut into a cast iron sewer pipe, all that remains is to weld the prepared flange to the pipe.
If you don’t have a welding machine at hand, then you should use any sealed mixture and clamps.
It is worth remembering that before starting the insertion, you must make sure that there is no liquid pressure in it.
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Tapping tools and how to use them
A situation where you need to connect an already functioning sewer system can arise at any time. Buying a new dishwasher or washing machine, installing a washbasin or faucet, connecting a heating pipe - all of the above is a reason for tapping into the sewer system.
The modern market is ready to offer the consumer a wide range of different adapters, which are an ideal solution for each specific situation. Connecting with them will not be a problem. Currently, there are two most common insertion methods:
- Using an adapter. This option is used when cutting into a sewer pipe of 110 or 100 millimeters. By the way, when inserting into sewer 110, the size of the adapter will be 50 millimeters.
- Use of plastic fittings. This option is used when installing to a pipe with a diameter of 32 to 40 millimeters.
To perform high-quality work with the adapter, you should follow the following list of simple steps:
- Completely limit access to water.
- Attach the bit to the drill and use a power tool to make a hole of the required size in the pipe.
- If an adapter with bolts is used, then the part is put on the pipe and the bolts are tightened.
- When installing without fasteners, the surface is first degreased, the insert is applied and the nut is tightened.
- To prevent leaks from forming, it is worth additionally lubricating the joint with sealant.
The quality of the connection into the sewer system will allow the home owner to avoid repairs to the entire system and connect a new plumbing or household appliance without unnecessary problems.
Methods for inserting outlets from household appliances
It is this problem that often becomes the reason for the sewer connection. Moreover, it occurs not only in houses with an old layout, but also in new apartments designed taking into account modern operating conditions. It is in such houses that the pipe in the bathroom, where the washing machine is installed, is concreted into the wall. So it turns out that it is easier to make an insert than to install a new siphon with seven ensuing consequences.
To work you will need the following tools:
- Metal strip, drill and large diameter drill bit.
- A clamp intended for fastening the outlet.
- FUM tape.
The work is carried out in the following sequence:
- A clamp is placed on the outlet, intended for fastening metal strips. To fix the clamp on the wall, you should drill holes in it.
- Since a connection is being made into a pressure sewer, it is necessary to let water through. This action will avoid the appearance of a foul odor.
- A hole is drilled in the pipe. If you cannot find a drill of a suitable diameter, then for further work you will need a sharp knife or file. With their help you can widen the hole. It is important to understand that the hole must remain round, and its diameter can only be two millimeters less than the identical parameter in the outlet.
- The outlet is wrapped with FUM tape and inserted into the hole. There is no need to try to save on the tape and, if necessary, it is better to wrap it completely for reliable fixation.
- Places for attaching metal strips are marked on the wall, holes are drilled in them and dowels are screwed in. The fastener is twisted with maximum density in order to tightly and securely fasten the clamp to the outlet.
The last step is to coat the edges of the joint with sealant. As soon as the lubricant hardens, an additional connecting layer is formed at the joint.
review:
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Source: https://gidkanal.ru/vrezka-v-kanalizatsionnuyu-trubu-sposoby-nyuansy-videoobzor/
Insertion into a sewer pipe
Sometimes it becomes necessary to connect an additional plumbing fixture to an already operating sewer system. For example, when purchasing a washing machine or dishwasher, in order to connect it you will need to make a connection into the sewer pipe.
For a professional plumber, such work is not difficult. But for a person who does not have experience, it is necessary to study the rules and methods of connection so as not to disrupt the operation of the system.
Reasons for the tie-in
There can be many reasons for crashing into a sewer. Here are just some of them:
- Connecting a new plumbing fixture.
- Transfer of devices to a new location, in case of redevelopment, etc.
- Connecting the house to the central sewer system.
In the first option, there is a connection to the in-house system, so there should be no complications as such. In the second case, if there is a need to cut into the central riser of an apartment building, there is a risk of being flooded with drains from the upper floors. Therefore, it is better to agree in advance with neighbors about the time of work and limiting the use of sewerage.
When connecting a house to a centralized sewer system, it is necessary to negotiate with utility services so that the water supply is shut off at a certain time. In this case, housing and communal services have the right to issue you an invoice for certain work.
How to install a tee into a sewer riser
Methods of inserting into the system
There are several ways to cut into a sewer pipe; the choice depends on the material and diameter of the pipes, the location and method of their location. In order to cut a pipe of a smaller diameter into a larger one, a special adapter is used, and if the diameters are equal, a tee or cross is installed.
Installing the adapter
This method is suitable for both plastic and cast iron pipes. The work is performed in the following sequence:
- A hole ∅ 50 mm is made in the pipe. This can be done with a drill and a special bit, but for cast iron you may have to use a cutting torch.
- The edges of the hole are cleaned of burrs using a file or sandpaper.
- The adapter installation location is lubricated with sealant.
- The adapter is installed and secured with clamps and bolts.
Tapping with a tee
When tapping into a cast iron pipe, you need to cut a part of it exactly to the size of the tee. After this, the connection is welded; it is better to trust such work to an experienced welder. It is much easier to cut a tee into a plastic pipe and you can do it yourself.
To do this, part of the pipeline is replaced with two short sections, between which a tee or pipe with a pipe of the required diameter is installed. The only difficulty may arise when connecting the sockets.
Insertion into a plastic pipe
Work process:
- We take a piece of pipe with a pipe of the required diameter.
- We prepare the workpiece - we cut out the pipe and part of the pipe so that it reliably covers the insertion point (you can simply cut it lengthwise).
- In the pipe into which we are cutting, we drill a hole, the diameter of which coincides with the pipe.
- Apply sealant to the inner surface of the workpiece and the pipe.
- We apply the workpiece and tighten it with clamps until the sealant appears.
This method can be used for both plastic pipes and any others.
Insertion into a vertical riser
When tapping into a riser, the first thing you need to do is negotiate with your neighbors so that they do not drain the water for some time. All subsequent work must be completed as quickly as possible.
For the riser, the best option would be to use a plastic oblique tee. This will make it easier to clear the blockage in the future. Such a tee is available for plastic and cast iron pipes; the direction of the pipe should be against the flow of wastewater.
Stages of work:
- Marking - the length of the cut section must be equal to the height of the compensator;
- We cut out a section of pipe - plastic can be sawed with a hacksaw, cast iron with a grinder.
- Cleaning the cut from burrs and rust.
- The joints are lubricated with soapy water or cream.
- A compensator is put on the top, a coupling on the bottom (if necessary), then a tee or cross;
- The compensator settles into the tee;
- The joints of plastic pipes are coated with sealant, while cast iron pipes are sealed with caulking or cement (without sand) mortar.
Insertion into a horizontal pipe
The sequence of work is practically no different from the previous one:
- We cut off a section to the size of the tee without taking into account the socket;
- We remove burrs;
- Lubricate with soap or cream;
- We connect all the parts, use a coupling if necessary;
- We treat with sealant.
If the insertion into the sewer pipe is done well, this will allow you to add an additional device. The main thing is that all work is carried out carefully, then you will not have to redo the entire system.
How to crash into a sewer plastic pipe
Source: https://pro-kanalizaciju.ru/vnutrennyaya/vrezka-v-kanalizatsionnuyu-trubu.html
How to make an insert into a sewer pipe - proven methods from a master
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If you decide to install another sink or buy a new washing machine or dishwasher, you will most likely need to tap into the sewer pipe. There are many ways to do this, despite the fact that there is a large selection of all kinds of adapters on the construction market. We’ll talk about how to cut into a sewer pipe in the simplest way below.
Inserting into a sewer pipe using a tee
It is worth noting that when inserting into a plastic sewer pipe, I rarely use tees, because there is a high probability of depressurization of the system in the connection areas. Adapters are usually used when inserting into a cast iron sewer pipe.
To make a tie-in, you will need to perform a number of such actions:
- Buy directly the tee itself.
- Shut off the sewer system. People living in apartments at this stage are asking their upstairs neighbors not to use the sewer system for a certain time. But in any case, you should make sure to have several containers with you just in case.
- Make all measurements at the location where the tee is installed.
- Cutting out the part of the pipe that will be replaced with a tee. You can use a grinder, but you need to be prepared for the fact that in some places the disk simply may not reach the desired points on the circle. In such situations, it is not recommended to resort to completing the procedure with a hammer, because due to the fragility of cast iron, a large segment of cast iron may simply collapse. Therefore, in this case, it is better to use a hacksaw to finish the metal.
- Installation of a tee. First of all, the tee is put on the short part of the riser, while it is pulled to the side. After this, the more movable part of the pipe is taken in the same direction and put on the tee. Then they proceed to leveling the riser line, after which the pipes are inserted into the tee as deeply as possible. If the pipes need to be temporarily secured, this can be done using a bracket.
- Connecting an old pipe with a tee. The master will need some skills and patience to perform such an operation. This is because old pipes run very close to the floor or wall, and this greatly impairs access to the welding point.
It is worth noting that before making an insert into a cast iron sewer pipe, very precise markings are carried out at will. There is no point in calculating down to the millimeter, since all elements are joined using the welding method.
When tapping into a cast iron drain pipe, for example, it would not be superfluous to mention that only high-quality sealants should be used, since if such work is carried out even by the most professional craftsmen, when using untested sealants, places with obvious leaks may form.
https://www.youtube.com/watch?v=SJwPydNVJ-c
To create airtight joints, it is best to resort to the use of well-known silicone sealants or epoxy resins. Sealing tape is quite popular these days. It is very easy to operate - you just need to clean the connecting surfaces from dirt and grease and wrap the edge of the pipe in two layers of tape in a spiral without forming wrinkles. Agree that this is as simple as possible!
If we talk about how to cut into a plastic sewer pipe, then installing a tee will be much easier. This is explained by the fact that plastic pipes need to be connected with sockets, and not joint to joint. In other words, when inserting into a plastic pipe, welding will not be required; you can get by with special glue for such purposes.
Inserting into a riser without removing part of the pipe
To complete this task, you will need a connection, that is, a collapsible clamp (more details: “Types of clamps for sewer pipes, fastening methods, installation tips”). Its design should include one blind half, and the second should have a pipe, to which a little later you will need to connect a sewer pipe, which in turn will be connected to a new plumbing element.
The clamp is installed in the following sequence:
- First, water and sewerage are shut off.
- Holes are drilled in the pipe.
- Next, fix the clamp with the pipe on the plastic pipe. Often tightening occurs using a screw connection.
- Now a seal is inserted into the pipe; as a rule, such a lining on a sewer pipe is rubber, made in the form of a corrugation.
- At the last stage, an outlet pipe is inserted into the corrugation.
In order to spend as little money as possible for inserting into a plastic pipe, you can make a clamp yourself.
In this case, the sequence of manufacturing operations will be as follows:
- Select a suitable plastic pipe - its internal cross-section must correspond to the external cross-section of the pipeline into which the insertion is made.
- A piece of the required length is cut from the pipe - it should be 5-10 cm larger than the outer section of the new pipe.
- Now this pipe needs to be cut lengthwise. One of the halves will serve as the outer back piece of the clamp.
- The remaining half is drilled to obtain a hole with a cross-section equal to the outer diameter of the pipe being mounted.
- Now you can glue the outlet pipe into the resulting gap.
- The inside of the clamp must be treated with a sealing compound.
- At the end, the two components of the clamp must be secured to the pipe.
Please note that for complete tightness and reliability of insertion into the sewerage system, it is recommended to use metal tape clamps to secure the edges of the halves. However, provided that there is no high pressure in the system, you can use regular electrical tape.
The last thing you need to do is drill a hole of the required diameter through the pipe in the pipe into which the insertion is made. Make sure that the back wall of the pipe remains intact.
Method of inserting a drain pipe from a washing machine into the sewer
Very often, when purchasing a washing machine, it becomes necessary to connect it to the sewer system, and the pipes end up embedded in the walls. Moreover, this problem is inherent not only in old houses, but also in new buildings. In order not to waste time installing an additional inlet into the siphon, they often prefer to insert it into the sewer pipe.
The following tools will be useful during work:
- drill and large drill bit;
- clamp for fastening the outlet from the machine;
- metal tapes;
- FUM – tape or sealing fluoroplastic gasket.
The insertion process includes several sequential steps:
- To fix the metal strips on the outlet, install a special clamp. If you want to mount it on the wall, you will need holes in it.
- In this case, an unpleasant odor is inevitable, because this is a sewer pipe. To minimize it, you need to drain the water.
- Now you need to make a hole in the pipe, the diameter of which is slightly smaller than the cross-section of the outlet. If you don't have a large enough drill, you can widen the hole using a circular motion. The main thing is that there is an even circle.
- The outlet pipe must be wrapped with FUM tape and inserted into the resulting hole in the pipe as tightly as possible. To ensure tightness, you can further wind the tapes until the desired result is achieved.
- At the last stage, you need to mark places in the wall for metal strips to secure the pipe. You will need to screw dowels into the holes to achieve a secure fastening.
We recommend that at the final stage of inserting into the sewer, wrap the edges of the pipe with sealant, which will provide additional strength.
If you follow all our recommendations, you will be able to correctly and competently insert the outlet from the washing machine into the central sewer system.
Source: https://trubaspec.com/kanalizatsionnye/kak-sdelat-vrezku-v-kanalizatsionnuyu-trubu-proverennye-sposoby-ot-mastera.html
How to crash into a sewer pipe
Installing plumbing fixtures requires large material costs, but some work can be done independently. There are several ways to tap into a 110 mm sewer pipe that do not require the use of expensive equipment. The choice of method depends on the material from which the elements of the drainage system are made.
Insertion into a sewer pipe.
Preparatory stage
Introduction into a cast iron or plastic pipeline begins with choosing the insertion method and purchasing the necessary materials.
When purchasing components, consider the following:
- The area connected to plumbing fixtures should not have sharp bends. This eliminates the formation of persistent blockages and diverts different water flows. The pipe cut into the riser must form a right angle. This value in plumbing is 88 degrees.
- When selecting adapters, take into account the location of the toilet flush corrugation. It can lie straight or sloped. Connecting using the second method does not cause any difficulties. For a horizontal connection, you will have to purchase a terminal with an offset center.
- If work is carried out during the day, it must be coordinated with other residents of the apartment building.
Required tools and materials
Before starting to insert into the sewer riser, prepare the following tools and components:
- Grinder or hacksaw. The tools are used to cut pipes made from any materials. For PVC you will need a hacksaw, for metal - a circular saw with an appropriate blade.
- Core drills. To connect to a pipe with a cross-section of 110 mm, a hole of 5 cm is created. This action can be performed with polypropylene elements using crown attachments of the required size. Expensive bimetallic tools are used to make holes in metal pipes. A cheaper way is to use a metal drill.
- Wrench. Required when installing an adapter connecting elements of different diameters.
- Sanding paper. When cutting PVC pipes, it is impossible to obtain smooth edges. If burrs remain in the cavity, the risk of blockage increases. Use a paint knife, sandpaper or file to clean the edges.
- Sealing compound. The material is used to ensure the strength of connections and easy insertion of pipes into adapters.
Insertion into a horizontal pipe
The connection can be made using a tee or an overlay with a pipe. In the first case, it is necessary to remove a section of pipe in place of which connecting parts will be installed.
Using an adapter, you can install a branch whose diameter is 2 times smaller than the size of the sewer pipe. The pipe is connected to the horizontal line from above or at an angle of 45 degrees. The connected pipe should not interfere with the drainage of wastewater.
Insert into a horizontal pipe.
The insertion is done like this:
- The area to be inserted is washed and dried.
- A hole is made in the pipe corresponding to the diameter of the connected pipe. For an element with a diameter of 5 cm, this value is 2.2 cm, for a pipe 11 cm - 5 cm. A core drill is used to form a hole.
- The adapter is treated with sealant and secured with clamps. The fasteners must be tightened carefully, otherwise the plastic elements may be damaged.
- A rubber cuff and a connecting pipe are inserted into the adapter outlet.
Inserting a sewer plastic pipe into a cast iron pipe
Often in apartments and private houses there is a need to tap into a sewer pipe. Installing new plumbing or appliances will definitely require a place to drain. In this article we will tell you about all the nuances of carrying out such work.
Using a tee
Insertion into a sewer pipe takes place quite quickly if the product is made of metal. In this case, it is enough to use a special tee, which is inserted into the channel at the site of the intended branch.
Step-by-step instruction:
- we temporarily decommission the sewer system (in a private house it is enough to warn all household members, but in an apartment you will have to run around among the neighbors);
- We cut the pipe with a hacksaw at the location where the tee is installed. The size of the defect must correspond to the length of the coupling;
- We put the wiring on the channel, weld the ends using a welding machine.
The apparent ease of work depends on the presence of a welder and welder. Professionals easily cope with this mission. And in the absence of experience, it will be very difficult to make such a seam. The negative point is that such work is carried out indoors. After all, welding is always dangerous and fraught with fire.
Insertion into a plastic system
Inserting into a plastic sewer pipe is easier. This can be done using an overlay with an outlet and a pipe. The work is carried out in the following order: prepare a pipe that will correspond in diameter to the insertion site;
- on the main riser we measure the size of the lining and use a marker to mark the diameter of the future hole;
- drill a hole in the channel using a concentric drill, clean the ends with a file;
- degrease the joint area, apply a thin layer of PVC glue around the hole (in this case, you need to retreat 10 mm from the edge of the hole;
- We also coat the plastic cover with glue and join the surfaces so that the holes clearly coincide;
- We additionally secure the lining using clamps (if the sewage system is free-flowing, then this can be omitted);
- While drying, fix the overlay with construction tape;
- Lubricate the outlet with sealant from the inside, insert the pipe;
- After drying, you can install an additional pipe in it.
In the future, you need to install a plug on the branch if you plan to postpone the sewer assembly work. You can make a “lid” from rags. In this case, the unpleasant odor from the drain will not enter the room.
We work with cast iron
Cast iron drainage is not so easy to cut. The main problems will be related to the rigidity and fragility of these channels. How to cut into a cast iron sewer pipe? First you need to make sure that it is disconnected from operation. In a private home, this process is easier to control. After this, you need to decide which withdrawal method will be used. It is easier to attach a special plastic adapter or flange with a ready-made outlet to a cast iron pipe.
For a channel with a diameter of 110 mm, special 50 mm bends are used. And for smaller pipes (32-40 mm), it is better to take 19-22 mm adapters with a plastic fitting.
The cast iron system is not so easy to open. If a plastic sewer 110 was easily cut with a regular drill, then here you need to take a turbine with a stone for metal. Experienced plumbers can use a chisel and a hammer, but for a non-professional, this technique will cause a lot of difficulties.
After opening the lumen of the pipe, file the joints. Attach the adapter and mark the attachment points with a marker. Next, use mastic and secure the plastic elbow to the pipe. Additionally, use clamps; they must be clamped until the sealant comes out from under the seam. Remove any remaining adhesive inside and outside the channel. Place a pipe of the required diameter into the adapter. Make sure the mastic is dry and put the system into operation. If there are no leaks, such a tap will serve you for 7-10 years.
Source: https://kanalizaciyalite.ru/tr/kak-vrezat-v-kanalizacionnuyu-plastikovuyu-trubu-chugunnuyu
Preliminary stage
Before you crash into the sewer system, you need to prepare. First, prevent neighbors from upstairs (if you live in a multi-story building). In another case, there may be a small flow of sewage. Prepare a container and a rag, since dirt cannot be avoided.
Secondly, stock up on the necessary tools and materials:
- If the insertion is into a cast iron pipe, then find a turbine with a stone for metal. It is possible to try to use the technique of a skilled locksmith. He makes notches with a chisel and knocks out the required piece of pipe. But such work requires skills, so it is better not to take risks and prepare the necessary equipment.
- If the pipe is made of PVC, then you can get by with a simple knife for metal or wood.
- Prepare a file, it will be useful to remove burrs on the cut.
- Depending on the insertion method, prepare a tee or adapter.
- Compensating pipe.
- Silicone sealant.
In addition, decide on the correct insertion location. Do not forget that the pipe must be placed at an angle so that the wastewater does not stagnate. The slope forms 2–3 cm for any meter of communications (depending on the diameter of the pipe). Based on this, pre-fit it and mark the entry point.
We crash using a tee
Tapping into a plastic pipe or its cast iron counterpart follows a similar scenario. First of all, a piece of pipeline is cut out. Its dimensions must exactly match the size of the compensating pipe and tee.
It is better to buy the tee itself from plastic, so it will be easier to install. Such structures can have an outlet of the same or smaller diameter, be straight or sloped. All three branches of the tee must have a neck and O-rings.
The progress of work on cutting into a sewer pipe will look like this:
- Using a hacksaw (plastic pipes) or a turbine (if the product is made of cast iron), we cut out the area marked in advance. At the same time, be prepared for an unpleasant odor and a small amount of waste that may flow from the system.
- Then, using a file, we remove burrs from the cuts (they will certainly appear on both cast iron and plastic pipes).
- Apply a layer of sealant to the outside of the upper section of the pipeline.
- Then we pull the compensating pipe onto the upper section of the pipe.
- After this, lubricate the pipe (its narrow side) and the lower section of the main pipe with sealant.
- Then we install the tee. We stretch the lower bell over a section of sewer pipe, and insert the narrow side of the compensating pipe into the upper one.
Then it is possible to connect a pipe from the new plumbing to the side outlet of the tee. Make sure that the upper (if it is a riser) section of the main pipe is securely supported. If the only fastening is the tee socket, then it is necessary to purchase a clamp and additionally secure the riser.
This method can be used both when connecting to a riser and to a horizontal pipe. In the second case, the work is easier to complete, especially if the communications are made of plastic. A sufficiently necessary area, cut out a piece of pipe and insert a tee.
Making a cut using an adapter
It is often not possible to cut out a piece of pipe, for example, if communications run close to the wall or are partially built into them. In this case, it is better to use a special adapter. Such an insert can be made on a plastic pipe. The adapter itself is a special cap with an outlet. But such a device can only be used if the connected pipe is smaller in diameter than the main pipeline.
The flow of work will look like this:
- Make your markings first. It is necessary that the pipe from the plumbing unit goes downhill.
- The place where the insertion will be made must be cleaned of dirt and dried.
- Using a core drill, make a hole that matches the diameter of the adapter. If the pipe into which the insertion will be made has a cross-section of 110 mm, then the hole must be strictly 50 mm.
- The adapter is coated with silicone sealant and inserted into the hole.
- Then a rubber adapter in the form of a cuff is inserted and it is possible to connect a pipe from the plumbing.
This method is considered undesirable. The fact is that burrs remain in the main pipe. Hard fractions of the wastewater will inevitably begin to get caught on them, which will lead to the formation of a blockage. This is especially true if the tie-in occurs in a sewer riser in a multi-story building.
This video demonstrates how to tap into a HAAS O 110 sewer pipe:
See how a crosspiece is inserted into a PVC sewer riser:
Source: https://uchebniksantehnika.ru/kanalizatsiia/vrezka-v-kanalizatsionnuiu-trubu.html
How to cut into a cast iron sewer pipe
Installing an additional sink, purchasing a washing machine or dishwashing equipment - all this requires installation work into the sewer system. There are many ways to solve this problem. In this segment of the building materials market there is a wide selection of transition devices. Thus, you can choose the appropriate and simplest option for connecting to the sewer system without any problems.
Do-it-yourself insertion into a plastic sewer pipe
Inserting into a sewer pipe using a tee
It should be noted that a tee is rarely used for plastic pipes due to the high probability of depressurization of the pipeline at the joints. With the help of this device, the cast iron sewer line is mainly branched. To crash into it, you need to perform the following sequence of actions:
- Purchase of a tee.
- Closing the sewer. For this purpose, residents of apartment buildings ask neighbors on the upper floors not to use the drainage system for human waste for some time. But just in case, they leave basins on hand.
- Measuring the installation location of the tee.
Tees of different diameters for inserting into sewer pipes
- Cutting out a pipe segment to be replaced with a tee. To do this, it is allowed to use a grinder. But a situation may arise when its disk does not reach some points of the circle. In this case, you should not finish dismantling the pipe segment with a hammer. Due to the brittleness of cast iron, the sewer line may simply collapse. It is better to finish the metal with a hacksaw.
- Placement of a tee at the rupture site. First, a tee is attached to the less moving part of the pipe (usually a shorter section of the riser) and at the same time moved to the side. Then the more mobile pipe is deflected in the same direction and is also attached to the branching element used. After this, it is necessary to level the riser line, and recess the pipes into the tee as deeply as possible. Temporary fastening can be achieved using a bracket.
- Welding an old pipe with a tee. When performing this operation, considerable skill will be required from the performer, since the tight fit of the pipe to the floor or wall significantly complicates access to the welding site.
Helpful information. When inserting into a cast iron sewer pipe, it is not necessary to mark especially carefully (down to a millimeter) (of course, within reasonable limits). After all, the elements are connected using butt welding.
A conversation about how to cut into a cast iron sewer pipe would be incomplete without mentioning the best quality sealants. After all, when carrying out this work, even experienced professionals create places for potential leaks.
Treating the cut-in part of the pipe with sealant to prevent leaks
To seal the connections, you can use the familiar silicone sealant or epoxy resin. But today, sealing tape is especially popular. It is very easy to use. The surfaces to be joined must be cleaned and dried, and the tape must be wrapped in a spiral around the pipeline in two layers without folds.
And that’s it, no difficulties!
If we are talking about inserting into a plastic sewer pipe, the installation of a tee in this case is significantly simplified. This is due to the fact that pipes made of plastic are connected using sockets, and not end-to-end.
That is, welding is not needed to connect them to the tee; special glue is sufficient.
How to cut into a sewer riser without removing a pipe segment
For this purpose, a connection in the form of a clamp with a collapsible design is used. One of its halves is blind, while the second has a pipe. It is to this that the sewerage pipeline is subsequently connected, which leads to the new plumbing unit. The clamp installation process is as follows:
- Closing the sewer, turning off the water.
- Drilling a hole in the pipe.
- Securing a clamp with a pipe on a plastic pipe. Typically, tightening is done using a screw connection.
- Inserting the seal into the connecting pipe. The seal itself is made of rubber and has the appearance of corrugation.
- The final stage. Inserting the outlet pipe into the corrugation hole.
To cut into a plastic sewer pipe at minimal cost, you can make a clamp with your own hands. The manufacturing and installation procedure is as follows:
- selection of plastic pipes. The criterion is this: its internal diameter must be equal to the outer section of the pipeline into which it is necessary to insert;
- cut off a section from the pipe. Its length should exceed the outer diameter of the new pipe by 5-10 centimeters;
- We saw the pipe along its longitudinal axis. One half will be used as the outer back of the clamp;
- drill a hole in the second half. Its diameter must be equal to the external cross-section of the connected pipe;
- glue the outlet pipe into the hole;
- carefully coat the inner surface of the clamp being made with sealant;
- We fix both parts of the clamp to the plastic pipe.
Helpful advice . To ensure reliable insertion into the sewer riser, secure the edges of the halves with metal strip clamps. However, if the sewage system is of a non-pressure type, that is, the pressure of the wastewater transported through it is low, this can be done using ordinary electrical tape.
At the final stage, we drill a hole through the outlet pipe in the pipe to which the connection is being made. Of course, this should be done very carefully so that the opposite side of the pipeline remains undamaged.
How to make an insert into a sewer pipe draining from a washing machine
Most homeowners face this problem. And not only old buildings, but modern projects. After all, in bathrooms, where washing machines are usually installed, the pipe is partially walled up in the wall, and you simply don’t want to install another inlet into the siphon. Therefore, the question of how to crash into a sewer pipe is very relevant today.
Plastic clamp with a pipe for inserting into the sewer
To complete this job you will need:
- drill;
- metal strip;
- clamp for fixing the outlet from the machine;
- fluoroplastic sealing material or simply FUM - tape;
- large diameter drill.
The sequence of actions looks like this:
- We put a clamp on the outlet that secures the metal strips. To attach to the wall, pre-drill holes in them.
- Since we are tapping into a sewer pipe, we let water through. This way there will be less unpleasant smell.
- Drill a hole in the pipe. If the diameter of the available drill is small, use a circular motion with a file or knife to expand the hole, observing the following requirements: it must remain round, and the diameter of the hole must be slightly smaller than this outlet parameter.
- We wrap the FUM ˗ outlet with tape, then insert it tightly into the hole. There is no point in feeling sorry for the FUM - the tape. If the need arises, rewind it until the outlet is securely fixed.
Marking the location of the outlet for the washing machine
- Next, we mark the places on the wall where the metal strips will be attached, drill holes in them and screw in the dowels, securing the clamp to the outlet as tightly as possible. This will prevent the pipe from falling out.
Helpful advice. At the final stage, coat the edges of the joint with sealant: when it sets, you will get an additional layer of joint.
Precise execution of this sequence of actions will save you from the need in the foreseeable future to search for an answer to the question of how to insert a drainage pipe from a washing machine into a sewer pipe.
Source: https://evroterm32.com/kak-vrezatsya-v-chugunnuyu-kanalizatsionnuyu-trubu/
Products – Tekhmashholding – group of companies, official website
There are several ways to connect an additional pipeline to an existing sewer pipe. The choice of method depends on the specific circumstances of the connection.
Insertion into a horizontal sewer pipeline
The most common situation: it is necessary to connect an additional plumbing fixture to a plastic sewer pipe with a diameter of 50 mm.
In this case, it is still wiser to dismantle the sewer pipe. And insert a tee at the connection point. The work is performed in the following sequence:
- The pipeline is being dismantled.
- The whole pipe is cut into two parts. In this case, an extra piece is cut out of the pipe equal to the length of the tee (minus the length of its sockets!).
- The pipeline is assembled on rubber seals.
The result will be a solid stationary pipeline with a connection for a new plumbing fixture. The only thing is that it is recommended to select an oblique tee (with an acute angle - the angle in the direction of fluid movement) to reduce the likelihood of clogging.
But there are situations when it is impossible to disassemble the pipe or it is necessary to cut into a cast iron pipe, which, by its appearance, seems to say that it is better not to touch it
Then tapping into the sewer pipe by drilling a hole in it along the diameter of the connected branch will help out. At the connection point, a fitting is used, which is called an adapter. It consists of a cap with an outlet for the connected pipe. Attached at the connection point with clamps. It is selected according to two parameters: – the diameter of the pipeline to which it is connected and the diameter of the connected pipe.
In general, the insertion kit is not difficult to purchase in the store.
But the adapter can only connect a pipeline whose diameter is half that of the pipe into which it is inserted. It is also important that the connection to a horizontal pipe is made only from above or with a deviation of up to 45 degrees from the vertical. This is important, since the inserted pipe should not serve as an obstacle to drains.
Insertion into the sewer pipeline using an adapter is carried out in the following order.
- The pipe at the connection point is cleaned and dried to at least the width of the adapter.
- A hole is drilled in the pipe according to the diameter of the connection. For example, for a 50 mm pipe it can only be 22 mm and nothing more. For a 110 mm pipe, the maximum diameter of the connected pipe can be already 50 mm. A core drill is used for drilling.
- The adapter is covered with sealant and secured to the pipe with clamps. It is important not to damage the plastic pipe when tightening!
- A rubber adapter cuff and a connected pipeline are inserted into the outlet pipe of the adapter.
Connection to the sewer riser
Tapping into a sewer riser can also be done in different ways. Typically the riser has a diameter of 110 mm (plastic pipes). If you connect a pipe of a smaller diameter, for example 50 or 40 mm, then you can use the adapter already described. But you need to remember that if the riser is passing, i.e.
If drainage is carried out from the upper floors, it is undesirable for protruding parts of the incoming pipe to be in the riser. Otherwise, this place will become a collection point for debris falling from above. Or even a blockage in a pipe if a rag falls on top of the protruding pipe
Otherwise, inserting a pipe of 50 or 40 mm in diameter into a riser does not differ from the above technology using an adapter.
It is only important to determine the insertion point so that the connected pipeline has the required slope.
But if a pipeline of the same diameter (110mm) is supposed to be inserted, then the situation becomes complicated. But solvable. Then the connection to the riser is made in this way: a piece of the riser is cut out and two fittings are inserted in its place - a tee and a compensator.
- A tee (if a pair of pipelines are connected, then a cross) is needed for connection. It is selected according to diameters - passing 110 mm and branch 110 mm? or 50 mm?.
- Compensator. It looks like a piece of pipe with a variable diameter. The wide part is put on the riser from bottom to top. Then it is lowered along the riser and inserted with the narrow part into the tee. Thus, it allows you to re-join the riser together.
Before installing the tee and compensator, it is necessary to make accurate calculations. The main thing is to determine the height of the tee. After installation, its outlet must be at a given height level to ensure the required slope of the pipeline connected to it. In this case, the length of the riser is taken into account, which will enter the lower socket of the tee. This is how the lower mark is determined along which the riser will be cut.
Then the upper mark is determined. The cut length of the riser must be equal to (or be slightly greater than) the length of the compensator so that it can be placed under the riser. The length of the compensator is added to the lower mark to obtain the upper mark.
Before starting work, you need to do the following:
- Prevent drainage down the riser during repairs. This must be ensured by any means - by going around neighbors, if any, or by setting up armed posts
- Prepare rags and water for cleaning.
- Clean and dry the riser at the location where the repair work is being carried out.
Work on connecting to the sewer riser is carried out in the following order:
- A part of the riser is cut out according to the marks obtained. To cut a plastic pipe, you can use any fine-toothed hacksaw. The edges are processed with a file so that there are no burrs left.
- The upper part of the riser, where the compensator will be, is covered with sealant.
- The compensator is put on the top of the riser until it stops.
- The lower part of the riser is covered with sealant.
- The tee is installed on the down pipe. First you need to make sure that the cuff in the tee is in place.
- The compensator is covered with sealant from below.
- The compensator moves down and is inserted into the upper socket of the tee.
- A suitable pipeline (for the sake of which this was started) is connected to the tee. If this pipeline does not yet exist, then the tee must be plugged.
- After which the stop-kanalizacion is called off, and the cleaning is done.
Source: https://pellete.ru/trub/vrezka-v-fanovuyu-trubu.html
