How to eliminate a fistula in a copper pipe

How to repair a fistula in a pipe - possible options, proven by practice

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The formation of a fistula in a heating or water supply riser mounted from metal pipes is not uncommon. The situation needs to be corrected as quickly as possible. Therefore, information on how to repair a fistula in a pipe and what methods are available to eliminate it will not be superfluous.

The presence of a red-colored growth on the pipe, which is called pitting corrosion, indicates a problem and that the pipeline can burst at any time (read also: “What to do if a pipe bursts and how to prevent it”). Damage occurs as a result of partial destruction or general wear of the line, or under the influence of stray currents. When a fistula is detected, the reason for its appearance no longer matters, the main thing is to eliminate it as quickly as possible.

A variety of ways to seal a fistula

To properly deal with the problem, first of all, you need to understand what a fistula in a pipeline is. This is the hole in the pipe through which water flows out.

You can eliminate it in several ways:

• using a bolt;
• using a temporary bandage;
• using an adhesive bandage;
• cold welding method.

But at the same time, it is imperative to drain the water from the system by closing the valves and opening all available taps.

Seal a hole with a bolt

This option involves a number of actions:

1. Expand the fistula in the pipe with a drill.
2. Cut the thread with a tap.
3. Screw the bolt into the resulting hole.

This method cannot be used when the pipes are too old, since it will be impossible to thread them, and attempts to do this usually end in increasing the size of the leak.

Repair using a temporary bandage

This method is used when the fistula in the pipeline has an oblong, elongated appearance.

A bandage is applied to the hole using sealing gaskets, which can be made from the following products:

• medical tourniquet;
• thick glove;
• bicycle tire;
• boot top, etc.

The main thing is that the size of the rubber gasket is significantly larger than the size of the hole. To fix the bandage on the pipeline, clamps or bolts are used.

Sealing with adhesive bandage

Elimination of a fistula using this method is carried out in stages:

1. Use a metal brush to clean the pipeline from dirt, treat its surface with acetone or gasoline and allow it to dry for 15 minutes.
2. Tapes are cut from fiberglass, the length of which depends on the diameter of the pipe - it is necessary that the winding has at least 6 layers. The width of the material must exceed the cross-section of the pipeline by no less than one third.
3. BF-2 glue is applied to the edges of the tape, then one side of it is covered with an epoxy adhesive with a spatula.
4. The tool is pressed firmly against the fiberglass so that it is well saturated with glue.
5. Then the tape is tightly wound onto a previously prepared surface so that its center covers the problem area.
6. The bandage is secured with metal tape.
7. After 24 hours, the repaired pipeline can be used.

If the system is laid in an unheated room where the temperature does not exceed 17 degrees, the pipeline can be used only after 4 days.

Cold welding method

Repair of water pipes without welding is carried out using a special composition:

1. The hole is expanded with a drill.
2. The surface of the pipeline is degreased and cleaned with acetone.
3. When the pipe is dry, a product called “cold welding” is applied to it and wait until it hardens completely - this usually takes about 10 minutes.

When using cold welding or epoxy adhesive, you must use rubber gloves. If glue gets on the skin, it must be removed with cotton wool and acetone, and then washed with warm water and soap.

Hole sealing process

When the system is worn out, it is advisable to prepare several clamps having the same diameter as the pipeline. In addition, you need to stock up on tires for them. If a water pipe fistula appears at night, such preparation will not be superfluous, since the emergency team is unlikely to arrive in a matter of minutes.

If the hole is small, it can be sealed using a regular vehicle clamp:

1. A thin strip is cut from a piece of rubber - its width should be 2-4 millimeters larger than the same parameter for the clamp. The length of the section is measured by wrapping the material around the pipe. The excess piece of tape is cut off.
2. The clamp is opened and placed on the pipe, then it is not grabbed tightly.
3. A rubber gasket is placed under the clamp and carefully moved to the location where the hole appears.
4. After covering the fistula, the clamp is tightened using a screwdriver or wrench, depending on the characteristics of the tightening device.

If a very small fistula is detected and there is no clamp at hand, the hole can be closed with the end of a match. But this method is used infrequently, since in old pipelines it is rarely possible to eliminate a leak - it only increases in size. Even if the gap is successfully sealed with a match, it needs to be repaired as quickly as possible using a clamp.

To eliminate a serious fistula on a hot water pipe, you will need a more powerful clamp:

1. First of all, turn off the water and drain it from the pipeline.
2. Before installing the clamp, carefully inspect the pipe. When its surface is uneven, it should be smoothed with sandpaper to prevent liquid from flowing through the roughness.
3. A rubber pad is cut out under the clamp and placed on the hole.

From the above information it is clear that it is quite possible to eliminate a fistula in a pipe with your own hands - neither special tools nor special skills are required. If there are metal risers, you need to prepare several clamps and rubber gaskets.

Source: https://trubaspec.com/montazh-i-remont/kak-zadelat-svishch-v-trube-vozmozhnye-varianty-proverennye-praktikoy.html

How to eliminate a fistula in a metal or plastic pipe - Prof Pipes

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The formation of a fistula in a heating or water supply riser mounted from metal pipes is not uncommon. The situation needs to be corrected as quickly as possible. Therefore, information on how to repair a fistula in a pipe and what methods are available to eliminate it will not be superfluous.

The presence of a red-colored growth on the pipe, which is called pitting corrosion, indicates a problem and that the pipeline can burst at any time (read also: “What to do if a pipe bursts and how to prevent it”). Damage occurs as a result of partial destruction or general wear of the line, or under the influence of stray currents. When a fistula is detected, the reason for its appearance no longer matters, the main thing is to eliminate it as quickly as possible.

We close a fistula in a metal riser ourselves

One of the most common problems that arise in a metal water supply and heating riser is the formation of a fistula.

Most often, a fistula appears on hot water pipes. It is quite simple to determine this problem: in the place where the fistula forms, a red growth or pitting corrosion appears.

The cause of a fistula on a metal pipe is wear. However, when this problem appears, it is necessary to think not about the reasons, but about rational ways to avoid a pipe break.

Before you begin to solve the problem that has arisen, you need to drain the water from the system by closing the stop valve and opening all the taps. After this, you can choose one of the acceptable methods.

Method one: sealing the fistula with a bolt

This method is not suitable for old pipes, since it involves cutting threads, and old pipes are not suitable for this operation, which can simply increase the diameter of the resulting leak. If you are planning to repair new pipes, then you will have to do the following:

• take a drill and expand the fistula;
• make a thread with a tap;
• screw the bolt into the threaded hole.

Method two: installing a temporary bandage

This method is intended for sealing an oblong fistula. To apply a bandage, you need to stock up on a rubber gasket, which can be made from available materials: rubber from a boot, a tourniquet, a tire or a thick rubber glove.

The size of such a gasket should be larger than the fistula. To secure the gasket tightly to the pipe, you can use either bolts or special clamps.

Method three: eliminating the fistula with an adhesive bandage

In this case, the work process consists of several stages.

First stage. Clean the surface of the riser from dirt using a metal brush. Then treat it with gasoline. After processing, allow the pipe to dry. This will take fifteen minutes.

Second phase. Take fiberglass and cut it into strips. The size of the segments should be such that one strip can be wrapped around the pipe six times. And the width of the tape should be one third greater than the diameter of the installed pipe.

Third stage. Treat the edge of the resulting strip with BF-2 glue. Then apply epoxy glue to one side with a spatula. The glue must completely saturate the material.

Fourth stage. After this, a tape is wound around the water pipe, the central part of which should completely cover the damage site.

Fifth stage. The resulting bandage must be pulled together and secured with a strip of metal tape.

It is important to remember that after repair the pipe can be used within just one day if it is located in a warm room. If the temperature in the room does not exceed seventeen degrees Celsius, then the riser can be used only after four days.

Method four: cold welding and fistula repair

Cold welding is also used to temporarily seal the fistula. In this case, it is necessary to use a drill to make the fistula wider, treat the pipe with acetone, having previously cleaned it, and apply the prepared composition, which will harden in ten minutes.

What to do with an old pipe?

Old pipes can also be removed from fistulas with the help of clamps, the diameter of which must correspond to the diameter of the pipe. In addition, it is necessary to cut the rubber bands that will be placed under the clamps.

This method is very convenient to use when a fistula appears suddenly at the wrong time of day. In order not to flood your neighbors before the emergency crew arrives, it is best to use this design.

If the fistula is small, then a standard size car clamp will do. The repair process is as follows:

• cut out the rubber tape. Its width should be either three to four millimeters greater than the damage site, or equal to it. The length is determined by wrapping the tape around the pipe;
• open the clamp and put it on the damaged area;
• lightly grab the clamp and insert the cut rubber gasket, carefully bringing it to the place where the fistula has formed;
• close the damaged area and secure the clamp with a key or screwdriver.

If the damage is large, a clamp of the appropriate size will be required. To install it, you need to drain the water from the pipes, first turning off the water supply.

Before installing the clamp, you need to find out the condition of the pipe. All irregularities must be smoothed out with sandpaper, otherwise water will ooze over the resulting irregularities. The clamp is then installed in the manner described above.

In principle, repairing a fistula in a metal pipe is not very difficult. This task can be easily accomplished if you have the most common tools and materials at hand. Experienced craftsmen recommend preparing the necessary materials in advance if you have metal risers installed in your apartment or house. Then no leak will take you by surprise.

Source: https://mnogo-trub.ru/sam/zadelyvaem-svishh-v-metallicheskom-stojake-samostojatelno.html

Repair of copper pipes - elimination of leaks and fistulas: how to repair them

Any plumbing system made of metal or plastic can leak over time. This may occur due to deformation or mechanical damage. If for some reason you do not have the opportunity to completely replace the system, then you can try to fix the leak in the pipe for a while.

To do this, you need to find out where the damaged area is located. If water appears under the bathtub or sink, the reason may be a weak drain connection. The problem can be solved by tightening the threaded connections or replacing the gasket.

If the problem is much more serious, then it is necessary to use effective methods to eliminate it.

Causes of water pipe damage

Most often, the pipeline fails in the bathroom; this occurs because there is a large load on the entire system. If your pipe has failed, you need to find out the cause. For example, the following problems are typical for a plastic system:

• insufficient sealing of fittings, this can happen due to the fact that the water is not completely shut off;
• the pipes were installed under water pressure;
• swelling of the structure;
• deformation or collapse of the entire system.

There can be several causes of damage in metal pipes. The most common ones are:

• loosening of connections, corner or straight;
• an internal corrosion process that forms small holes throughout the entire area of ​​the structure;
• frozen water in severe frost, which leads to rupture of pipes;
• the formation of small cracks and leakage.

Corrosion is the main problem for metal; it is what causes rust, which causes the pipe walls to become thin. As a result, small holes appear that can cause partial or complete leakage of the entire system.

https://www.youtube.com/watch?v=6SrQF0a8G2I

In order to carry out high-quality pipeline repairs, you need to understand what to do if a pipe is leaking.

Basic requirements for repairing metal pipes

If water starts dripping from the drain pipe, it will be easy to fix. Repairing pipes operating under low pressure is the simplest. To fix a leak in the bathroom, you can try to seal the problem area using cement and a small piece of fabric.

Use of cement. Free the pipeline from water, dilute a little cement, the solution should be liquid. Next, place a piece of fabric into the solution and soak it thoroughly; the fabric should be saturated. Next, wrap the fabric in several layers around the problem area, then leave it for 1 day, the cement should dry well. The wound fabric can be painted so as not to spoil the appearance of the room. The advantage of this method is its simplicity. But the disadvantage is that:

• if the structure is located too close to the wall, it will be inconvenient to use this method;
• this method is not suitable for the joints of the structure;

Using glue. This method involves the use of epoxy glue. To do this, you will need to clean the pipe from paint or rust and degrease it with acetone. Next, take the fiberglass tape and soak it well in glue. We seal the hole and leave it to dry for a day.

Using a bolt. To do this, it is necessary to increase the diameter of the damaged area, after which a bolt with a rubber washer is screwed into it. It is worth noting that this method will help for a short amount of time, so as soon as the water stops flowing, immediately begin preparing for a complete replacement of the structure.

Using a steel clamp.> For this method, a steel clamp is installed on the damaged area and secured with bolts and rubber, which is placed under it.

Using a welding machine. This method is the most reliable and effective. Unfortunately, it is impossible to do it yourself, because... This requires skills and knowledge. If you managed to repair the problem area, seek quality help from specialists.

Repair of copper products

But it will not be possible to repair copper pipes using the methods described above. For copper, high temperature brazing is used. Using soldering makes it possible to eliminate leaks and extend service life. Another common problem in copper construction is the formation of cracks at the bends.

Expert advice! To prevent the formation of leaks and cracks on copper, the bend radius should be taken into account.

A leak may also occur due to a faulty fitting. In this case, it is necessary to replace the gasket if it is the problem. If the fitting fails, then it is necessary to cut out a piece of pipe and install a new one with a coupling.

For small damaged areas on a metal structure, you can use a special sealant and seal the hole.

Basic requirements for the repair of plastic structures

Plastic plumbing is much easier to fix. To do this, you do not need to use welding, but you can try to seal the damaged area. Several effective methods for eliminating a leak in a pipe.

Using electrical tape. To do this, you need to wrap the damaged area with electrical tape. This method will help the system work for a long time.

Application of molten plastic. To do this, you need to take a small piece of plastic, heat it and seal the hole. Perform all actions carefully, otherwise you may damage the water supply.

Expert advice! If the depth of cracks or scratches is 10% of the wall thickness, the area must be replaced. Any structure operating under pressure requires additional mechanical pressure. The glue may dry out or crumble.

Removing a fistula in a pipe

The problem of a fistula in a heating or water supply system is quite common. Fistulas occur as a result of wear of pipes or under the influence of stray current. A fistula in a pipe can be repaired in several ways:

Temporary bandage method. To fix a leak, you can use any of these materials:

• durable rubber glove;
• bicycle tire;
• medical tourniquet;

Important! The size of the rubber gasket must exceed the area of ​​the fistula.

Elimination of leaks occurs in the following way:

• the pipe is cleaned and treated with acetone;
• Tapes are cut from a piece of fiberglass, their size depends on the diameter of the damage; the length of the tape should allow at least 5 layers to be applied to the pipe;
• The edge of the tape is treated with glue and the pipe is tightly wrapped.
• We tighten the resulting bandage with a metal tape.

Cold welding method. To do this you need to do the following:

• expand the fistula with a drill;
• clean the surface of the pipe with acetone and let it dry;
• cover the damaged area with cold welding compound;

You can also seal the fistula using clamps; this method is most often used for old structures in the bathroom.

Preventing Leaks

In order to prevent the formation of leaks in sewer, plumbing and heating systems, you should follow the simple recommendations of specialists:

• do not allow the drain pipeline to become clogged;
• make sure that condensation does not form on the cold riser;
• freezing of the external pipeline is unacceptable;

Each of the proposed solutions to the problem does not cause technical difficulties. The only exception is a malfunction of the metal or plastic system on the drains. In this case, simply covering up the damaged area will not work; this will require the help of specialists and the use of equipment.

Source: https://vodakanazer.ru/truboprovod/ustranenie-techi.html

How to eliminate a fistula in a metal or plastic pipe

A fistula or hole in a pipe through which water flows out is almost always an unexpected problem that requires immediate elimination, especially if pinpoint deformation of the pipe occurs in hot water pressure systems. A stream of hot water gushing from a damaged pipe under strong pressure can ruin the decoration of the apartment, furniture, and cause burns and injuries.

Causes of fistula

The main cause of pipe breakage is pitting corrosion. Externally, the appearance of a problem can be noticed even before a fistula appears. Corrosion growths on the walls of the pipe, when lumps of rust appear under the swollen paint, are a signal that the pipe may burst at any moment.

The corrosion process develops most quickly in the off-season, when the air temperature is within +150 C. Metal pipelines are corroded by rust and a through hole appears in the pipe wall through which water flows out.

The main reason for the appearance of a fistula in plastic pipes is a poor-quality connection; in addition, plastic weakly resists mechanical stress.

What to do

If the water is in full swing, it is recommended to change the system or part of it immediately ; all attempts to solve the problem by other methods can only be temporary.

If the trickle is small, the leak can be eliminated by sealing the hole after turning off the water supply. After draining the system, it is easier to determine the size of the hole. To do this, clean the leak area with sandpaper, removing a layer of paint and rust.

Before you begin to fix the problem, you need to degrease the surface with acetone or gasoline.

Note! Cleaning and degreasing is an important stage of repair; if you neglect this and try to seal the hole on an untreated, uneven surface, it will be difficult to achieve maximum tightness, and after a while the problem will make itself felt again.

By cleaning and degreasing the surface, you can assess the nature of the hole and its size, and choose the most correct repair method.

Options for eliminating a fistula in a metal pipe

Way	Description	Peculiarities
Rubber pads	A strip of rubber with a length greater than the diameter of the pipe by 50 mm and less than the circumference of the clamp by approximately 100 mm is wrapped around the pipe at the site of damage. The bandage is tightly fixed with a clamp.	A universal method that is suitable for repairing leaks of various types on pipelines for various purposes. If the hole is small, you don’t even have to interrupt the water supply.
Adhesive bandage	A medical bandage or fiberglass soaked in an adhesive solution is wrapped in the form of a cocoon around the pipe at the leak site six times, covered with a layer of epoxy glue on top, and secured with a clamp.	The water supply can be turned on again only a day after it has completely dried. Instead of glue, you can use a cement solution.
With a bolt	Expand the hole using a drill, cut a thread in it, then screw in a self-tapping screw or screw.	Suitable for repairing minor damage. It is not recommended for use on old pipes, where such actions may further damage the pipe.
Cold welding	Apply the product to the damaged area.	It is considered a temporary measure, after which another better and more reliable method of repairing fistulas should be used. It should be remembered that cold welding is quickly destroyed under the influence of hot water and high temperature.
Bandage and table salt	Small defects at the joints can be eliminated using a bandage sprinkled with salt, which, when dissolved in water, closes microcracks.	Not suitable for repairing large holes.

Options for eliminating leaks in plastic pipes

Fistulas on plastic pipes can be eliminated by welding or threading:

Welding	Cut the damaged piece of pipe, prepare the fitting and workpiece. Using a plastic soldering iron, melt the ends of the fitting and pipe and connect the melted ends. You should work quickly, remembering that the plastic hardens quite quickly, so it won’t be possible to redo it; you need accuracy and precision in your actions and work skill.
Threaded method	Prepare an insert of the required size, cut a thread using a tape measure on a plastic pipe, then fasten the structure using a coupling.

Source: https://InfoTruby.ru/svoimi-rukami/svishh-v-metallicheskoj-ili-plastikovoj-trube

How to repair a fistula in a pipe: a guide to action

Articles

This article will discuss how a fistula that appears on a pipe is sealed, what methods of sealing exist, and detailed instructions for sealing are provided.

The situation with the appearance of a fistula in a metal heating or water supply riser occurs quite often, especially in the case of a hot water supply riser.

The first sign that a fistula has appeared in the pipe and it can “explode” is the appearance in some cases of a red growth on it, which is scientifically called pitting corrosion, and popularly called “a pipe in a pipe.”

Fistulas occur in pipes both as a result of wear and under the influence of stray currents, but at the moment the fistula appears, the cause fades into the background, and it is much more important to find out how to correct the situation.

Methods for sealing a fistula

Sign of a fistula

A fistula that appears in a pipe can be repaired in several ways, each of which requires first draining the water from the system by closing the stop valve and opening all taps. Let's look at the main methods of sealing fistulas in more detail.

Sealing with a bolt

Fistula

Includes the following steps:

Important: this method is not suitable for old pipes, since it is almost impossible to cut pipe threads on them; attempts to cut them usually lead to an increase in the diameter of the leak.

Sealing with a temporary bandage

This method is usually used when the pipe fistula has an oblong, elongated shape.

A bandage with sealing rubber gaskets is applied to the fistula, and the following materials can be used as a gasket:

• Thick rubber glove;
• Old bicycle tire;
• Medical tourniquet;
• Rubber boot top, etc.

Important: the rubber gasket must have a size significantly larger than the size of the fistula.

The gasket is fixed to the pipe using special clamps or bolts.

Sealing with an adhesive bandage

Sealing with an adhesive bandage: 1 – pipe with a fistula, 2 and 3 – tape

Using an adhesive bandage, the fistula on the pipe is sealed as follows:

1. Clean the pipe from dirt with a wire brush, treat its surface with gasoline or acetone and allow to dry for at least 15 minutes.
2. The fiberglass fabric is cut into strips, the dimensions of which depend on the diameter of the pipe so that the length of the strip allows for at least 6 layers of winding, and its width exceeds the diameter of the pipe by at least a third.
3. The edges of the tape are treated with BF-2 glue, after which one side of the tape is coated with epoxy glue using a spatula.
4. Press the spatula firmly so that the tape is saturated with glue.
5. Next, tightly wrap the tape onto the treated and cleaned surface of the water pipe so that the center of the tape covers the damaged area.
6. The bandage is tightened with a metal tape.
7. After a day, you can use the repaired pipe.

Important: in the case of a pipe located in a cold room with an air temperature not exceeding 17°, you should start using the pipe only after 4 days.

Repair using the cold welding method

Cold welding

To temporarily seal the resulting fistula, you can also use a special composition called “cold welding”:

1. The fistula is expanded using a drill.
2. The surface of the pipe is cleaned and degreased with acetone.
3. After drying the pipe, apply the composition to it and wait for it to completely harden for 10 minutes.

Important: work with epoxy glue and “cold welding” should be done with rubber gloves.

If glue or composition gets on your skin, wipe it with cotton wool soaked in acetone, then wash your hands thoroughly with soap and warm water.

Instructions for sealing a fistula

Clamps

If the pipe is not new, it is recommended to purchase several clamps in advance, the diameter of which coincides with the water supply riser, and also cut rubber for the clamps.

Such preparation can be useful if the fistula occurs at night - in this case, there is a risk of serious flooding while waiting for the on-duty mechanic or emergency team.

In the case of a small fistula, it can be repaired using a standard car clamp:

1. A thin strip is cut out of a piece of rubber, the width of which is equal to or 3-4 mm greater than the width of the clamp. The length of the tape is measured by wrapping it around the pipe and cutting off the excess part.

Clamp and tape length

1. Next, open the clamp and put it on the pipe.

Putting on the clamp

1. The clamp grabs a little.

Seizing the clamp

1. A cut rubber gasket is inserted under the clamp and carefully brought to the site of the fistula formation.

Gasket insert

1. Cover the fistula and tighten the clamp with a wrench or a screwdriver, depending on the tightening device of the clamp.

Repaired fistula

As a temporary measure, when there is a very small fistula and there is no clamp at hand, the fistula can be repaired by simply breaking off and inserting the tip of a match into it.

Important: this method should be used only as a last resort - as a result, when the pipes are very old, the fistula may not close, but only increase in diameter.

And even if the fistula is successfully sealed with a match, it should be closed as soon as possible using a clamp.

Clamp for large fistulas

In case of a more serious fistula, it is advisable to also have a more solid clamp ready (see photo):

1. The first step is to turn off and drain the water from the pipes.
2. Before installing the clamp, inspect the surface of the pipe. If it is uneven, it is smoothed out using sandpaper to prevent water from flowing through the existing roughness.
3. Next, as described, they cut out a rubber lining for a more powerful clamp and also install it in place of the fistula.

Closed large fistula

As can be seen from the article, self-sealing fistulas in pipes is not particularly difficult; it does not require any special skills or tools. If the apartment has metal risers, it is advisable to always have a couple of clamps and rubber gaskets ready for them so that the appearance of a fistula does not take you by surprise.

Source: https://o-trubah.ru/remont-i-operacii/proryv/kak-zadelat-svishh-v-trube-280

High-quality repair of copper pipes with your own hands

All equipment for repairing copper pipes can be purchased at a hardware store.

The need to repair copper pipes usually arises spontaneously when a leak or fistula is discovered in them.

If the problem is not critical, then the owner has several hours or even days to call a technician or fix the problem himself.

Experts categorically do not recommend postponing repair work until later, because the likelihood that the situation will have irreversible consequences is very high.

Why does a leak form?

When installing a heating or water supply system, many people do not even think about what could cause the problem. Ultimately, this no longer matters, however, only when installing the system, possible risk factors must be taken into account.

Before repairing copper pipes, it is worth studying the recommendations of specialists.

The main ones include:

1. Mechanical damage. The pipeline often suffers from carelessly moved furniture, tricks of household members, etc. As a result of these actions, dents and chips remain on the surface. At first they do not manifest themselves in any way, but over time it is in these places that fistulas form.
2. Incorrect care. Metal, like any other material, needs attention from the owner. Coating pipes with paint is not only an aesthetic aspect of the issue, but also reliable protection of the metal from corrosion. However, before applying a new layer, it is necessary to clean off the old coating. In this way, you can immediately see problems and take timely measures to protect against leaks.
3. Poor quality material. In an attempt to save money, many people buy second-hand offers or the cheapest metal. When deciding on such a deal, you need to be prepared that the “new” pipeline will last almost half as long as a high-quality one.

When installing a new system, it is impossible to provide for absolutely all the nuances. However, everything can be done to ensure that the pipeline system lasts as long as possible.

DIY repair options

Having discovered a fistula in the pipe, you need to put aside panic and analyze how best to eliminate the problem. A win-win option is to call a plumber to fix the leak, who will solve the issue in a few hours and even give a guarantee for the service provided. It’s another matter if it is not possible to call a specialist.

Then you can eliminate the leakage in the following ways:

1. By means of a clamp. This method is the most economical and can be implemented by anyone with any level of technical skill. It is enough just to select a clamp of the appropriate diameter, install a sealing rubber gasket and tighten the bolts tightly. In this condition, the pipeline can last for several more years.
2. Use of fittings. Crimped, threaded or capillary elements allow not only to revive a damaged section in the pipeline, but also to reuse removed elements. Such metamorphoses do not affect the service life of the system in any way.
3. Soldering. To repair copper pipes, soft solder is most often used, which is evenly distributed over the surface. After this, it is exposed to open fire, resulting in the most airtight seam. This action allows you to solder the pipe within a matter of minutes.

If you do not have experience repairing copper pipes, it is better to contact a professional

The repair takes no more than a few hours and allows you to carry out work without freeing the system. You need to be careful, perhaps, with a pipe with hot water or one that passes under pressure.

It is absolutely forbidden to touch systems with flammable or dangerous liquids and gases yourself.

How to repair a fistula in a riser pipe

When deciding to repair a leak in a pipeline yourself, it is very important to choose the best option that will allow you to forget about the problem at least for a certain period of time.

The clamp can be used in the following situations:

• The cold water pipe is sealed;
• The fistula is small in size;
• Corrosion has appeared on the surface, but no water oozes from it;
• The damage has a small diameter.

It is important to understand that repairing a riser using a clamp is not a panacea, but only a temporary solution to the situation. The leaking pipe will still have to be replaced in the next few years.

Fittings and soldering are long-term technologies that allow the pipeline to be used until forced dismantling (repair, planned replacement of communications, etc.).

A special device for repairing copper pipes can be found on the Internet or in a specialized store at an affordable price.

Such methods are much more expensive and require a certain level of training. Before starting work, you must carefully study the installation/soldering technology and practice on a separate pipe section. If everything works out, you can safely begin work. If some points remain unclear, the repair should be entrusted to professionals.

Preparation and sequence of work

Repairing a small pipe or a huge pipe begins with the implementation of basic preparatory steps, without which it is impossible to guarantee a positive result.

When making repairs, safety regulations must be followed

You need to work in the following order:

• Fixing the pipe (even ordinary insulating tape will do);
• Surface cleaning;
• Removal of small debris;
• Checking the connection for leaks;
• Degreasing the surface;
• Sealing the fistula.

Repairing copper pipes (provided there is a complete or partial absence of leaks) is not at all difficult if you follow all the steps according to the regulations. It is enough just to choose the best option, carry out the preparatory steps and reliably seal the fistula. If all steps are performed correctly, the “patched” system will be able to serve for at least a couple more years.

Source: https://kanaliza.ru/truby/provodim-kachestvennyj-remont-mednyh-trub-3-varianta

How to repair a fistula on a pipe: heating or plumbing, various repair methods

The term “pipe fistula” refers to deformation changes in the form of a through hole in the pipeline. The main reason for the formation of this phenomenon on rolled pipes is considered to be pitting corrosion.

It is a clear signal that the pipe line needs urgent replacement. It is not always possible to perform a full range of pipe repairs with replacement, so it is only partially performed.

At the same time, we must not forget that such measures are temporary, and replacement of areas that have fallen into disrepair cannot be avoided anyway. You can use the help of professional craftsmen, or you can fix everything yourself.

How to eliminate an “accident”

To complete the installation you need to prepare the following tools:

1. Drill.
2. Bolts (set).
3. Brush for cleaning rolled metal.
4. BV-2 adhesive and epoxy adhesive type.
5. Acetone and gasoline.
6. Ketn.
7. Putty knife.

Before sealing the fistula in the pipe, water is drained from the network. To do this, you need to close the stop valve and open each tap. The system should be free of residual water.

Next, the size of the corrosion formation is determined. To do this, carefully remove the paint layer and rusty formation with sandpaper. A smooth surface should form in the area of ​​the breakage.

After this, the cleaned area must be degreased with acetone. You can use gasoline for the same purpose. When sealing, this stage of action is very important.

When applying a bandage to a workpiece with an uneven surface, it is impossible to obtain the most airtight joint, and all sealing measures will have to be repeated again.

On a well-cleaned surface of the product, the amount of deformation can be accurately determined. And, guided by the information received, they determine how to further eliminate the deficiency. According to the form of formation, fistulas are divided into: point and elongated. Each of them is eliminated differently.

How is the work carried out?

Repair of fistulas on pipes is carried out using the following methods:

• Using a bolt. This method is used when it is necessary to seal a small hole. The hole is widened with a drill, and a thread is cut in the prepared hole. A prepared screw or self-tapping screw is screwed into it. In old highways it is not recommended to do this. The old age of used metal can lead to the appearance of a larger hole in the “problem” area.
• Bandage with rubber gasket. This method is universal because it is suitable for all pipes and any type of water leak. The bandage is selected depending on the size of the leak. It is recommended to use a rubber gasket, and a strip 0.5 cm larger than the bandage and a centimeter smaller than the circumference of the pipe is cut out of it. It is installed under it and the structure is placed on the fistula area. If it is not very large, then during repairs it is allowed not to interrupt the water supply.
• Repair with adhesive bandage. First you need to prepare a strip of fiberglass, or an ordinary bandage. The size of the tape should be such that it is enough to wrap the product six times. This ribbon is soaked with epoxy glue and wrapped so that the leak is located in the center. At the end, the bandage must be secured with a clamp. This pipe network will be able to function only a day after repair.
• Sealing by cold welding. This option is temporary. It is intended for small holes. Afterwards, it is better to repair the problem area using one of the more reliable methods. The described method is not durable due to the fact that the influence of water and high temperature on liquid welding leads to its weakening. To repair using cold welding, you simply need to apply it to the water leakage area that appears on the product.

In this article you will learn how to eliminate a fistula in a pressure pipeline.

Troubleshooting plastic products

A fistula on a plastic pipe is repaired in two ways: threaded and soldered.

The threaded method can only be used for products where thread cutting is possible. A piece of pipe line with a fistula that has become unusable is cut off with special scissors.

An insert is prepared from blanks of the required volume. On plastic materials, threads are cut with a tool. Then another structure is secured to the pipe network using fittings and couplings.

Welding on plastic pipe materials begins with cutting off the leaking area. After this, a fitting and a workpiece of the appropriate size are prepared.

A heated soldering iron for welding plastic pipes is used to heat the outer edges of the plastic and the inner edges of the fittings. At the final stage of repair, the prepared pipe is attached with fittings.

This should be done without delay, as plastic tends to harden instantly, and an incorrectly fastened structure cannot be remade again.

Problems in the heating line

Communications do not last forever, and even when using high-quality materials, a fistula can form on the heating pipe.

The underlying reasons for heating leaks are:

• Wear. It is tied to a long period of use of the heating system. Most often, steel products suffer from leaks.
• Violation of operating conditions of the heating system. This includes temperature and pressure surges and water hammer.
• Use of goods of questionable quality.
• Poor sealing of joints.

If a leak appears in the heating pipes, proceed as follows.

You need to prepare several clamps with rubber seals (the most important thing is not to forget to turn off the water, stop operating the heating boiler, disconnect the pumps from the power supply and turn off the necessary valves and taps). Repair of rolled pipes in the heating network depends on their type.

For example, steel pipes with a problem with a threaded joint will require disassembling the joint and applying a new winding layer.

If the destruction has occurred on the heating pipe itself, then the problem area will have to be welded using gas or electric welding.

If a copper pipe is leaking, then it must also be welded. But welding work with copper is quite complex, therefore, it is better to entrust it to specialists.

If metal-plastic pipelines of the heating system are leaking, then the entire section where the leak occurred will need to be replaced. In this type of pipe, it most often forms in compressor-type joints.

On heating pipes made of plastic, the problem is solved in this way. This is the replacement of an entire section. Soldering of polypropylene is recommended to be carried out in accordance with all standards for this work. Any errors can cause the joint to fall apart after a very short period of time.

IMPORTANT! When working with plastic products, it is prohibited to make changes to the wiring diagram.

If we are talking about how to weld a fistula in a pipe, which is large in size, then there is only one recommended solution - a complete replacement.

And, if the fistula is small, then here are several options for action. But, these recommendations can only be applied when pipes made of metal are leaking.

Option 1. In this case, the defect is eliminated using a medical bandage and cement for sealing. First, a solution of cement and water is diluted. 15-20 strips, 20 cm long, are cut from the bandage. The strips are moistened in the solution and wrapped around the line. The result is something similar to a cocoon. A cement mortar is applied on top of it. All this must dry for 24 hours, and then the pipe network can be started.

Option 2. Pieces of rubber to make repairs. A strip is cut out of rubber, slightly longer than the circumference of the pipe. The problem area is tightly covered with this strip, which is then fixed. For reliability, it must be covered with a bandage with cement, as described in the previous method.

Option 3. Bandage and table salt. This is how the small “gaps” between the joints are covered. To do this, wrap the leak site with a bandage mixed with salt. Salt, when dissolved, fixes the microleak. But this method cannot be used for large formations; you should act differently.

Defects in water supply networks

People often ask how to repair a fistula in a water pipe. Unfortunately, plumbing leaks are a very common occurrence.

In this case, the water leak can be sealed using devices such as a clamp, cold welding, or any other traditional methods.

The condition of the plumbing system must be constantly checked. If the workpieces have served for a long time, and it is not possible to quickly replace them, then it is necessary to prepare several clamps in reserve to make repairs, because a water leak in such products can occur at any time.

If stains of rust appear on the water supply and paint builds up on the pipes in some places, this serves as a signal that pitting corrosion will soon appear.

Before removing such paint, it is recommended to prepare all the tools for repair, because no one knows what size the hole may be under this layer.

IMPORTANT! A fistula in a cold water pipe under a layer of paint is not as dangerous as in its counterpart with hot water. If water from under the removed paint flows out of the pipe during repairs like a fountain, it can cause serious burns to a person.

Leaks in sewer lines

When considering the question of how to eliminate a fistula in a sewer pipe, it should be noted that coping with this task is a little more difficult than repairing water leaks in the joints.

At the beginning of the sealing, an assessment of the defect and strength of the workpiece will be required. Small leaks can be eliminated using plugs for this type of tube rolling. You can also try the repair method - wrapping it with gauze impregnated with epoxy resin.

An option with a rubber gasket secured with a clamp will help to temporarily seal a water leak. It and the repair clamp can be purchased at any building materials store. Also, its gasket can be fixed using wire.

Longitudinal cracks and chips on the pipe can be easily eliminated with sealant. To do this, the fistula is slightly enlarged, degreased and dried.

After this, a sealant is applied to the area. Metal materials in sewers from water leaks are sealed by cold welding.

Repairing leaks with your own hands

Water leaks occur at any time, so sealing fistulas in pipes with your own hands is a very important skill.

For very urgent repair of a fistula, it is recommended to use a clamp. It is a metal tie. And you need to apply the clamp like this:

1. The water supply system is shut down.
2. The bolts on the clamp are unscrewed and it is wrapped around the water leakage area.
3. The nuts on the clamp are tightened with an adjustable wrench, while the pipe itself is held in place with a pipe wrench. Without support when sealing with a clamp, the pipe can be damaged, which will result in additional water leaks and repair costs.

Sealing methods using a locknut and a rubber band are also effective. In general, it is not difficult to repair and eliminate a fistula on a pipe.

If you don’t have confidence in your abilities, then you should invite professional craftsmen. And if the fistula is repaired using one of the temporary methods, then you should worry about how to carry out a full repair of the pipes in the near future.

Source: https://trubanet.ru/truby-dlya-otopleniya/svishh-na-trube-kak-zadelat-pravilno.html

Fistula in a pipe - what it is and how to repair it

Hello, dear readers!

You can easily detect a fistula in a heating or water supply pipe by looking at the fountain of water gushing from the riser. Know that after this the problem must be eliminated as quickly as possible. Otherwise, because of a small hole, your home will soon float. And the apartments located below will set sail with it.

I will tell you how to fix the problem yourself and quickly, until reinforcements arrive in the form of housing office repairmen.

What is a fistula?

A fistula is damage to the pipeline wall in the form of a crack or through hole. Leaks of this nature indicate that it is time to replace a section of pipe. However, it is not always possible to do this immediately after detecting a leak on your own. By the time the called technician arrives, a significant part of the apartment will be flooded with water, not only yours, but also your neighbor’s. But installing a temporary patch is not that difficult.

Reasons for appearance

A fistula appears suddenly, usually at the most inopportune time. For example, when no one is home or it’s late at night. It makes itself felt due to pitting corrosion if the pipes are metal, usually on heating and hot water supply risers. Can also occur in systems with plastic pipes due to excessively high pressure. In the latter case, the type of pipes most likely does not correspond to the design of the heating and hot water supply systems.

Ways to repair a fistula with your own hands

What to do if a fistula takes you by surprise? Do not panic. Take a look around - you will probably find improvised means for sealing a fistula in your home:

• bolt;
• temporary or adhesive bandage;
• cold welding.

If you found any of the above, then consider that the problem is solved. Do not forget that the coolant and hot water are under pressure in the system. Therefore, if possible, turn off the water or coolant supply at the shut-off valves before proceeding with the repair using a method suitable for you.

Sealing with adhesive bandage

One of the most difficult methods of sealing a fistula on a water pipe, but at the same time very reliable. The procedure is as follows:

1. Clean the leak area from dirt, then degrease it with gasoline or acetone.
2. Prepare a piece of fiberglass fabric 3 times wider than the fistula and of such length that you can wrap it around the pipe at least 6 times.
3. Apply epoxy glue to the edges of the fiberglass tape and wrap the tape tightly around the pipe.
4. Secure the resulting bandage with metal tape.

Sealing with an adhesive bandage: 1 – pipe with a fistula, 2 and 3 – tape

Cold welding repair

Cold welding is a special two-component composition, completely ready for use. Usually sold in transparent plastic tubes. The product is intended for sealing holes and other defects in containers for various liquids. Cold welding has also proven itself to be effective in the temporary repair of fistulas.

Before use, the composition must be kneaded in your hands, then covered with it over the hole in the damaged pipeline and thoroughly smoothed with moistened fingers or a spatula. Cold welding dries and hardens in 10–20 minutes. After this time, hot water can be used again.

Which way is better?

The choice of a method of dealing with fistulas does not have clear criteria. It all depends on the scale of the disaster and the availability of certain materials and tools at hand. For example, a temporary bandage is the simplest thing you can do to stop a leak for a while. A permanent bandage is more durable, but you must have fiberglass and minimal skills with epoxy glue.

The situation is similar with a bolt plug - you will need both an electric and a special plumbing tool, which not every home has. In my opinion, the most affordable way to remove a fistula is to use cold welding. It is sold in many construction stores, in handling it is somewhat reminiscent of ordinary plasticine or clay, dries quickly and is inexpensive.

Conclusion

In conclusion, I note that all of the above methods for repairing pipes are only temporary measures. A fistula repaired with improvised means will sooner or later make itself known again, or, worse, a new one will appear nearby. Monitor the condition of the pipeline and carry out timely maintenance. If a fistula is detected, try to replace the damaged section of the pipe or even the entire riser as quickly as possible.

With this I say goodbye to you and thank you for your attention. Subscribe to our articles and share useful materials with videos on social networks.

(2 5,00 out of 5)

Source: https://vseotrube.ru/montazh-i-remont/svishh-v-trube

How to fix a pipe fistula yourself

Fistula. What is this? This term refers to a deformation in the pipe in the form of a hole. The main reason for its appearance is considered to be chiseled corrosion. This is a clear sign that the water supply structure is worn out and needs to be replaced.

However, it is not always possible for a person to immediately carry out a full range of work to replace the system with a new one. In this case, it is necessary to perform a partial repair to eliminate the fistula. It is worth remembering that such repair work is temporary and does not eliminate the need to replace worn pipes.

You can call a professional to carry out the work, but you can also do it yourself.

https://www.youtube.com/watch?v=n1mQng5Okk8

What is a fistula?

In order to eliminate a fistula, you need to stock up on the following tools and materials:

• Drill;
• Set of bolts;
• Special adhesive composition BV-2;
• Metal brush;
• Epoxy adhesive;
• Petrol;
• Tap;
• Acetone;
• Kern;
• Putty knife.

Caused by rust

Before eliminating the fistula, it is necessary to drain the water from the system. For this purpose, it is necessary to close the stop valve. Then all the taps open.

First you need to expand the fistula. This is done using a drill. Threaded elements are cut with a tap. The bolt is screwed into the widened hole. It is worth noting that these repairs are recommended to be performed only if the pipes are not very worn out. If the structure is old, it is unlikely that you will be able to make high-quality carvings on it. This will only increase the defect.

Fistula removal.

How to eliminate a defect using a bandage

This type of repair work is optimally performed if an elongated fistula has formed on the structure. In order to seal it, a bandage with a rubber seal is applied. The seal can be made from rubber gloves, an unnecessary bicycle tire, a doctor's tourniquet, or a piece of rubber boots. The size of the seal must be larger than the volume of the defect in the pipe. This gasket is attached to the structure using clamps or a bolt.

How to seal a hole with an adhesive bandage

To begin with, the pipe is cleaned with a metal brush. It is then treated with acetone or gasoline. Wait about 15 minutes. At this time, you can start cutting the fiberglass into equal parts. The optimal sizes of such tapes are directly dependent on the size of the pipes.

The tape is cut correctly if it can be wrapped around the structure at least six times. The width of the segment should be three times the diameter of the structure. BV-2 adhesive is applied to the edges of fiberglass sections. Then an epoxy adhesive is applied to one side of the piece using a spatula. It should saturate the segment well.

To do this, while applying the glue, the spatula must be pressed well against the surface of the tape. It is then wrapped around the structure. The middle of the segment should be in the area where the fistula formed. The bandage is tightened using a metal tape. The structure is left for a day.

If it is located in a cold room, you will have to wait at least 4 days for the system to come into working condition.

We eliminate the defect by “cold welding”

The defect should be expanded using a drill. Then the structure is cleaned of dirt and treated with acetone. You should wait until the structure dries and then apply the “cold welding” compound to it. It dries within ten minutes.

Attention: If you use cold welding or epoxy adhesive during repair work, you should wear rubber gloves. The glue should not come into contact with the skin. If it does get on the skin, it should be immediately removed using cotton wool soaked in acetone, and then the area on which the glue is found should be thoroughly washed with warm water and soap.

In conclusion, we can say that the listed methods for sealing a hole in pipes give only temporary results. We recommend that you replace the water supply with a new one. People who do not allow the structure to wear out do not even know that it is a fistula.

Source: http://TrubyGid.ru/ustranit-svishh-truby

Fistulas in the boiler pipes appeared before the start of its operation

Which method is best to eliminate a fistula in a heating pipe depends on the material from which the water supply is made, the location of the leak (at the junction of connections or in an open area), and the diameter of the perforation. Most often they use one of the described methods:

1. Seal a hole using a bolt.
2. Application of a temporary rubber bandage.
3. Applying a fiberglass adhesive patch.
4. Fixing leaks using “cold welding”.

Sealing a fistula in a pipe with a bolt

Seal a hole using a bolt. If a small diameter hole has formed in an open section of a metal pipe, you can seal it using a bolt, self-tapping screw or screw.

• Clean the edges of the hole from rust.
• Drill the hole with a drill with a metal drill to the size of the bolt that is supposed to be inserted.
• Cut threads into the drilled hole using a tap.
• Screw in the bolt, using flax and Unipak paste to seal.
• Paint the restoration area.

It is important that the dimensions of the inserted bolt or screw do not create difficulties for the movement of fluid. This method is effective if the damage occurred due to an impact or unsuccessful drilling.

It is recommended to repair the area damaged by rust using other methods, since the metal, thinned by corrosion, easily crumbles when drilled. Every man can repair a fistula in a pipe.

Bandage for caisson

Application of a rubber bandage. A temporary bandage is provided with a rubber gasket, fixed on the damaged surface. Rubber products larger than the hole are used as a sealing gasket: a tourniquet, tire or glove. It is easy to purchase a pipe clamp of a suitable size at an Auto Parts store. The work order is as follows:

1. Clean the metal from any remaining corrosion.
2. Wrap the fistula on the pipe with a rubber gasket several times.
3. Place the pipe clamp and tighten.

If necessary, you can use two tightening clamps at opposite ends of the gasket.

Patch in a heating pipe and cast iron radiator

Applying a fiberglass adhesive patch. This method is used if the damage is large enough. The bandage is a patch made of fiberglass and epoxy adhesive that dries to create a durable surface. This method of repairing damage to metal is well known to car enthusiasts who have had to apply patches to areas damaged by corrosion.

• Shut off the water supply to the area being repaired.
• Completely clean the surface on which the bandage will be applied of paint and rust.
• Degrease the cleaned area with solvent.
• Cut fiberglass tape twice as wide as the hole in the pipe and long enough to wrap around the pipe several times.
• Saturate the tape liberally with epoxy glue.
• Wrap the bandage tightly around the fistula on the heating pipe, being careful not to make folds.
• After waiting for it to dry, clean and paint the surface.

Cold welding of pipe under pressure

Elimination of leaks using “cold welding”. The special adhesive hardening composition is called “cold welding” for the strength of the joint formed. They can be used to seal a fistula in a pipe with hot or cold water. You can purchase it at auto parts departments or hardware stores. “Cold welding” is applied as follows:

1. Remove rust from the metal and paint around the hole by 10–15 mm.
2. Treat the surface with a degreasing compound - solvent or acetone.
3. Seal the fistula by applying “cold welding” to it with a thickness of 2–3 mm, evenly distributing it over the surface. Wait for it to harden.
4. Clean the surface with a file and paint.

Advice. There are several types of “cold welding”. For water supply, it is advisable to choose one that is designed for application on a wet surface.

Repairing a fistula at home is quite possible with your own hands

Competent execution of work

Pipeline welding technology produced in accordance with the basic principles ensures long-term operation of the entire system

To do this, it is important to maintain slopes for the natural movement of the coolant. So, you don’t have to redo the work twice

It is also worth maintaining a sufficient distance from the walls and between the pipes so that it is convenient for the welder to weld the joints efficiently. For more reliable melting, a gap of 1-2 mm is left between the sides, into which the molten metal flows.

Welding of main pipelines is carried out in several passes to ensure tightness. The gas pipeline is also installed using the same principle. The welder performs the root weld using electric welding. It is important to achieve the formation of a reverse bead, which indicates good penetration of the sides. Subsequent layers are applied by automatic machines with filler wire and a layer of flux.

For better installation of the main pipeline, laser welding is used in the workshops, and only the last joints are made on site. Manual welding on pipes starts from the very bottom of the circle (in a horizontal position of the pipeline) and proceeds upward. The deposited metal is applied in “shelves” and raises the seam around the circumference to the highest point. This is done on both sides. The seam must be completed on solid metal. .

Methods for eliminating leaks in the sewer system

The problem of how to eliminate a leak in a cast iron sewer pipe can be solved in several ways, the choice of which depends on the strength of the pipeline, the presence of cracks and chips, and also their size.

Repairing sewer pipes without replacing the damaged section can be done in the following cases:

• The case has minor cracks and holes.
• A leak was found at the pipe junction.

A leak at the junction of sewer pipes involves sealing the cracked joint, for which the following steps are performed:

• The system is temporarily disabled.
• Use a rag or hair dryer to dry the joint.
• Clean the joint from cement and remove the packing from the cracks.
• Using linen plumbing winding, mint the gap between the pipes.
• Prepare a solution of polycement and PVA glue and coat the crack with it.
• It is recommended to begin operation of the sewer system only after 24 hours.

You can seal a crack at the junction of sewer pipes with waterproof glue, epoxy resin, raw rubber, ordinary plasticine or special silicone sealant. In the latter case, the sewer can be used after 3 hours.

To avoid having to constantly repair cast iron sewer pipes, it is better to replace the part of the system that has become unusable before it is completely destroyed. Otherwise, as a result of the failure of utility lines, sewage may flood the apartments on the floors located below.

If the leak is caused by a small hole, you can use the following materials:

• Rubber bandage . This material is best used for short-term repairs of cast iron pipes, and the bandage must be secured with aluminum or copper wire.
• Stub . This repair item is a wooden wedge. During manufacturing, it is important that the product is not very long, as it can cause a sewer blockage. The finished part is hammered into the leak area and the pipe is wrapped with a strip of gauze. Finally, you can impregnate the material with epoxy resin.
• Gauze . This material, pre-moistened in epoxy resin or cement mortar, is wrapped around the pipeline. Such a winding should have the shape of a cocoon.
• Special clamp

Source: https://www.tproekt.com/metody-ustranenia-teci-v-vodoprovodnyh-trubah/