If you are faced with the need to lay sewers and you don’t know how to connect sewer pipes, don’t worry: remember your childhood and play ... in the constructor.
The fact is that modern pipes for this purpose are made of PVC (plastic, in other words). And for the convenience of their installation, they are issued strictly defined diameter and length. Well, since the pipes are not always laid only strictly straight, to them in any store selling such goods, you can find swivel fittings. All this is very similar to the children's designer, as the elements of the sewage system, if you do not particularly delve into the process itself, are simply inserted into each other. As a result, you get a strong and reliable connection that does not leak, does not let the unpleasant smell and can serve you for a long time without replacement or repair.
Sewer pipes and fittings
But let's go back to the fittings. Fittings are additional elements to the pipes, which help to combine them into a single structure. It is customary to distinguish fittings depending on:
Methods for connecting sewer PVC pipes
Do not think that all of the above in the classification fittings are different elements. In fact, the same fitting is in each line of the classification under a different name. Take, for example, a coupling that serves to connect two sewer pipes. By design, this fitting will be just a "coupling", by purpose - intermediate, in shape - straight.
Relying on a similar classification of fittings, it is much easier to imagine what exactly you need to connect the pipes into one design.
The process of connecting pipes
Before understanding how to connect sewer pipes, it is necessary to understand the principle of assembly of all system of the sewerage.
Typical sewage scheme
Connecting the toilet bowl
Sewage scheme in the apartment
External and internal sewage
in contrast from the internal or internal apartment, external sewage system (laid along the local area) is assembled without swivel fittings. Instead, it is recommended to arrange wells - they will facilitate cleaning. After all, all the pipes will be hidden in the ground and it is quite difficult to dig them out every time they become clogged with you, and cleaning through fittings that go to the surface of the ground is not always possible.
Of course, outdoor sewer pipes have a larger diameter than pipes in a house.
Each of them, cutting into the outer tube, increases its diameter by one size.
If the external pipe is common for the other two with a diameter of 110 mm, then its diameter should not be less than 160 mm; for three pipes of 110 mm each - with a diameter of at least 200 mm. This rule applies to small buildings, provided that the distance to the nearest sewer does not exceed 30-40 meters. In other cases, the outer tube must have a larger diameter in order to work "with a margin."
Most often in the process of installing sewage it is necessary to connect pipes of different diameters. Therefore, we suggest you to watch a useful video covering this question: