In old apartment buildings, cast-iron pipes have always been used to equip the sewerage system. The main problem of such a pipeline was the need for regular repairs, since the design quickly fell into disrepair with active use. In addition, the replacement of the sewer riser in an apartment building was also carried out during a major overhaul.
Nowadays, on the market you can find a large number of pipes made of more modern materials, which have a number of advantages compared to cast iron. For this reason, many homeowners choose to replace cast iron pipes with plastic products. From this article it will be possible to learn how to change the sewer riser in the apartment and what materials will be required for this.
Why change the sewer riser in the apartment
Since the sewers in apartment buildings are under heavy load, they have to be repaired periodically (read: ""). The most common problem that can occur is leaking pipes. Of course, you can always eliminate a small crack in the pipeline by calling the master, who will put a clamp on the damage site. If desired, this work can be done independently, but this work has a weighty pitfall - such repairs will be temporary. After a certain period of time, the system will break through completely, and then there will be much more problems.For self-repair of the sewer riser, you will need the following tools and materials:
- the corresponding piece of plastic pipe;
- cross or branch;
- rubber compressor;
- compensator;
- revision (if available on the old pipeline);
- shaped pipe (needed only if the diameters of the new and old pipes differ);
- fasteners for the riser;
- perforator;
- a hammer;
- soap;
- marker or pencil;
- building level.
Replacing the sewer riser in an apartment is usually carried out along with a major overhaul in the apartment. If possible, it is worth doing just that, changing the riser at the same time as replacing plumbing and installing new pipes.
This process has many advantages:
- firstly, in this case, you can save on calling the master, since he does not have to come several times;
- secondly, it is much easier to negotiate with neighbors once than to turn off the riser every time you need to replace part of the sewer system;
- thirdly, in this case it will be possible to save a lot of time and effort, which is perhaps the most important advantage. See also: "".
Replacing the sewer riser
Before you replace the sewer riser in the apartment, you need to understand the sequence of work. The first stage of construction work is the dismantling of the old pipeline. On the top floor, it is easier to carry out these works, and if repairs have to be done at any other level, then you will have to turn off the sewer riser in the apartment. To do this, you will have to contact the local service authority so that the water can be officially turned off - otherwise problems may arise.Replacing the sewer riser in the apartment, in the best case, should be carried out completely, taking into account those parts of it that are in the interfloor ceilings. In this case, the replacement of sewer risers in an apartment building should be accompanied by punching two holes around it - above and below. After that, the pipe can be dismantled for further replacement. Of course, such work will require the consent of the neighbors, and if it is not received, then you will have to limit yourself to replacing the riser in your apartment, along its entire height.
In any case, after removing the old pipeline, you can install a new one. To connect a sectional smooth pipe located vertically, it is necessary to insert each section into the socket, which is equipped with a rubber cuff. Soap is usually used to improve the connection: after processing, the pipes are much easier to mount.
The sockets must be positioned in such a way that their direction corresponds to the direction of movement of the drains. That is, if the slope of the pipeline leading from the plumbing is at the proper level, then the smooth ends of the plastic pipes must be mounted in those sockets that are located below (in more detail: ""). All this will prevent clogging of the structure with small particles of waste.
When installing a sewer riser, it is worth providing the necessary connections for all plumbing that is in the apartment. The connection of bends and tees with a riser is carried out according to the same principle by which the main pipeline is connected. More details can be seen in the photo or read in a separate article on connecting devices to the sewer.
Installation of a new riser usually begins with the installation of a tee or bend at the bottom. This element is inserted into the socket of the sewer pipe. Next, the resulting joint must be sealed, for which sealant or winding is usually used. The gap between the tee and the vertical pipe cannot exceed 10mm. In addition, we must not forget that plastic pipes cannot be equipped with sliding sleeves, since only expansion joints are suitable for such cases.
Next, you need to install the fasteners for the riser. Clamps are attached to the wall with dowels, but only if there is a gap of no more than 5-7 cm between the wall and the riser (more details: ""). When this distance is greater, a board impregnated with an antiseptic is first attached to the wall, which can be used as drying oil. If desired, the board can be replaced with metal corners or other materials. The top clamp should be installed as close to the socket as possible, and the bottom clamp should be located as close as possible to the spigot. In typical apartments, it is enough to use three clamps, and the riser will hold quite securely.
When all elements of the sewer system and plumbing fixtures are installed and connected, it is necessary to check the operability of the system. To do this, you need to dump water from all appliances and look at its movement. No leaks and a good outflow rate indicates a job well done. This completes the work, and if desired, the riser can be disguised using decorative lining, which should be made collapsible in case of subsequent repairs.
Conclusion
Replacing a sewer riser in an apartment is infrequent and does not pose a particular problem, but in the absence of experience in construction, it is better to use the services of professionals so that the quality of work is high enough, because a good master knows how to replace a sewer riser in an apartment. Be that as it may, it is sometimes necessary to change and repair the sewerage system in an apartment, and properly done work will ensure comfortable use of this system.
