It is necessary to solve the question of how to close up a leak in a sewer pipe from an exact clarification of the place of the leak and the cause, taking into account the material of the pipe.

Causes of accidents

Repair of sewer pipes takes place in emergency situations. Accidents are different, which means that they need to be eliminated in different ways.

If a sewer pipe leaks due to mechanical damage, a major overhaul is inevitable: replacement of the entire pipe or part of it. When the connection is depressurized, minor repairs can be dispensed with.

Sewerage leaks, as a rule, due to damage to pipes or defects in their production, as well as at the joints.

1. Joint.

If the sewer pipe flows at the junction, you must:

• dry the joint;
• clear of clogging, cement or glue;
• seal the gap between the pipes with sanitary linen winding;

• generously cover with plumbing sealant;
• Do not use the sewer for 5 hours.

1. Crack in coating.
   The problem of how to eliminate a leak in a sewer pipe if it goes through a cracked solution is solved as follows: after drying, we cover all cracks with silicone, epoxy, liquid rubber and even plasticine.

1. Fistula.
   If water flows out through a fistula in the pipe, then temporarily you can drive a short wooden wedge into it - a chop or a lead cone, then wrap the pipe with rubber or bandage and then impregnate it with epoxy, or make a clamp. Installing a clamp, even a homemade one, is the most reliable option.

Crack repair

From a change in temperature, shallow longitudinal cracks appear on the cast-iron exhaust pipes. How to seal the sewer pipe is decided separately in each case.

You must first slightly expand the outside, degrease and dry the crack, and then cover it with sealant. Then you need to cover the pipe with a heat insulator.

Sewer pipe leaking through cracks?

Eliminate radically:

• "cold welding" using a special two-component adhesive;
• after hardening, grind the seam and paint over it.

Sealing of fistulas

Method one

Method two

Tighten the coupling - the leak is closed

There are different plugs for sewer pipes.

• Plug for cleaning. If you do not use cleaning, then you can cover the joint of the pipe and the wedge with sanitary silicone.
  In order for the joint to dry out, it is not recommended to use sewage for 2 hours. Can be dried with a hair dryer. If the chopik lets water through, you can pull it out, after slightly swinging it, trim it to insert it more tightly.
  But before driving the chop again, it is better to wrap it with plastic wrap from an ordinary bag.

• You can put a plastic plug instead of a wooden wedge, and put a rubber gasket on the plug. How to cover the sewer pipe if it leaks again? It is necessary to seal the plug with the gasket with sanitary silicone.
• If there is a leak at the junction, it is necessary to completely fill the joint, around the top of the sealing, pour gum arabic, that is, liquid glass - office silicate glue.

Replacement of the damaged area

It is often possible to eliminate a leak only by replacing the damaged piece of pipe with a whole one.

Required tools and parts: hacksaw; linen; pipe wrenches; sealing putty; clutch; pipe cutter; cap nut.

Working process

• Cut out a pipe section with a leak + 30 cm with a hacksaw for metal.
• Unscrew the threaded connections, clean the threads, remove the cut piece.
• We cut the thread on the old pipe. To do this, hold it with a pipe wrench. This will prevent the pipe from deforming and twisting.
• We screw the coupling onto the fixed pipe coupling and find out the length of the pipe to be replaced, taking into account the length of the thread.
• Having fixed the pipe with a vice, we saw off the required length with a pipe cutter.
• Let's cut a thread on it with a screw.
• Having wound flax on the thread, we seal it and lubricate it with sealing putty.
• Connect the new pipe to the old pipe with a pipe coupling.
• With a cap nut, connect the new pipe to the old one at the other end.

For emergency repairs, the pipe can be wrapped with rubber from a bicycle inner tube and secured with couplings until a major overhaul.

Repair of cast iron pipes

We seal the joints of cast-iron pipes:

• winding strands;
• sediment strands;
• putty with asbestos-cement mortar.

But first you need to clean the pipe to bare metal.

If the service life of the sewer pipes has expired, the system must be dismantled:

• we cut the pipe with a grinder to the joint;
• from the socket we remove the remnants of stuffing, cement;
• on the remaining section of the pipe with a grinder, we make transverse cuts - an emphasis for the lever;
• insert the mount into the grooves formed and loosen it along the axis of the pipe;
• we take out the rest of the pipe from the socket;
• we put a rubber coupling-adapter in the socket;
• put a plastic pipe in it.

Repair of plastic pipes

• If the surface of the plastic pipe is damaged, repair is not desirable due to its unreliability and low cost.
• The question of how to cover up a sewer pipe, its slight damage is solved in a modern way simply: with a sealant.
• Additionally, fittings can be cut in. Tees are suitable for inserting into a sewer pipe (see more details).
• In case of a leak at the junction, it is necessary to replace the deformed seals by lubricating the new ones with silicone.

If the sewer pipe is leaking (see also), you can easily and quickly eliminate the leak using the indicated improvised means and self-confidence or do it.