Replacement of pipes in the apartment

16-03-2018

Pipes

If you live in a Soviet-built house, then, most likely, cast-iron sewage pipes are used in the bathroom and in the bathroom. After years they cease to conform to the technical characteristics, therefore, they need urgent replacement. The replacement of cast-iron pipes with modern plastic ones is also performed during the overhaul of the bathroom. At the same time, the replacement of the pipes is carried out. In this article we will explain how to properly replace the drain pipes in the apartment.

Fun pipes What is it?

Not everyone knows what fan pipes are, especially where they are. But then everyone knows what a sewer riser is. In fact, the fan pipe is a continuation of the riser. It is displayed on the roof of the building in order to remove unpleasant odors that are natural to the sewer system. The fan pipe can be placed in different ways:

upright
horizontally,
diagonally.

The presence of a fun pipe is a requirement. Especially when it comes to high-rise buildings. Otherwise, in the bathroom and in the bathroom there will be an unpleasant smell from the sewer and no exhaust and ventilation will not cope with it. The fan pipe should also be installed in private homes for the same purpose.

When do you need

If the house is small, then installation of the fun pipe is optional. This is due to the fact that the volume of wastewater will be insignificant, respectively, this will prevent the occurrence of a vacuum. The sewer riser is made of pipe O110 mm. The rest of the pipes coming from the bath, duskbinki, washbasin and other plumbing fixtures have a much smaller size. Considering the factor that the hole in the drain tank is small, the cross section of the pipe in a private house will not overlap. This requires the discharge of effluent simultaneously in all pipes. In a private house, this happens very rarely.

In a private house, a fan pipe is installed without fail in the following cases:

If you have a pool, and draining water can trigger a water hammer.
In the case when on the same riser in a two-story house there are two bathrooms.
When the sewer pipe has a small size.
In case of close location of the septic tank to the house.

As for apartment buildings, a large number of tenants live here. Therefore, the discharge of sewage is carried out in large volumes. As a result, the installation of the fun pipe is an important necessity. This also applies to small resorts, private hotels and the like. In such institutions there are several bathrooms, bathtubs and showers. When installing a funnel pipe, the following points should be taken into account:

The diameter of the fun pipe should be slightly larger than the sewer riser.
The pipe should go outside the building. This will save the living space from unpleasant odors.
The termination of a pipe in the attic is unacceptable.
To create a ventilation draft, the pipe must pass through to overlap in a warm room, and then in a zone of cool air.

Tip! If you decide to run a funnel outside the building, the sewage evaporation will not be removed. As a result, a green sticky plaque will form on the walls, which will lead to its destruction.

Device fun pipe

As mentioned above, the fan pipe is a continuation of the sewer riser. It is made from the same material as the main one. Often the fan pipe is displayed in a horizontal position. This can be observed in cases where the building is designed on an individual request.

Tip! The combination of funnel pipes with ventilation shafts is prohibited.

The hole at the outlet of the fun pipe is protected by a special umbrella. This prevents birds, debris and rain from entering the sewer system. As a consequence, the umbrella prevents possible blockages. If the sewer system is not used for about two weeks, the water in the siphons, which creates a water trap, dries out. If there is no fan pipe, unpleasant odors will fill the room. If there is a fan pipe, then the reverse process is observed. The warm air of the room, which rises on the riser, at the moment of contact with cold air forms a kind of vacuum. As a result, cravings are formed, which contribute to the rapid elimination of accumulated air in the siphon.

Alternative to the fun pipe

In rare cases, the use of a funnel is impractical from the aesthetic side. The presence of pipes on the roof can significantly impair the appearance of the building. For this reason, it is customary to use modern design that removes unpleasant odors. A funnel is mounted on one of the risers, and a vacuum valve is mounted on the other risers. It is equipped with an airtight rubber band, which is equipped with a weak spring. In some cases, installation of the valve without the presence of a funnel is allowed. However, with this option in the septic tank should be a ventilation pipe.

When need a replacement

Replacement of the funnel can be carried out with regular blockages, the penetration of unpleasant odors into the room and during the overhaul. The very unpleasant smell appears for several reasons, for example:

Separate parts of the sewer system are not tight.
Cuffs on the toilet out of order.
The trap in the siphon constantly dries up or simply does not work.

If, after the examination, possible reasons for the penetration of unpleasant odors were found and eliminated, but it is still present, then it is time to replace the funnel pipe.

Dismantle and installation of a fan pipe

Tip! An assistant is needed for the installation of a funnel, as this is a very difficult job. It is impossible to dismantle cast iron sewage pipes alone.

To replace the sewer pipe, a complete disassembly of the sewer riser is required. If this is possible, then individual sections of the riser will be replaced. This will save money and significantly reduce labor costs. Replacing the riser in a high-rise building requires prior agreement with neighbors who live above the floor. In this case, it is necessary to agree on how long the replacement of the riser will be carried out. Otherwise you will be flooded with drains from above.

Tip! If you need to dock old cast iron pipes with new plastic pipes, a special rubber transition should be used.

So, in this article, we learned with you how to replace the fun pipes, and in what cases it is necessary. With a little effort, you can do all the work yourself.

Video

See how to caulk a fan tee: