Laying sewer pipes do it yourself

A house without plumbing and sewage will never be comfortable. Improvement of these communications should be dealt with in the process of building design, or during reconstruction, if it has already been built.

Autonomous sewage - a necessary thing in every private house. It is carried out in several stages, each of which requires its own materials and knowledge. Now we will not go into details, but consider one of its most important processes - laying of sewage pipes with our own hands.

Pipe selection

High loads act on the internal sewage system, while the external sewage system is much stronger, therefore, the requirements for tubular products for it are relevant. Since the sewer pipes are laid in deep pits, the pressure of the earth on them cannot be ignored. Moreover, when laying such products under the roadway, it is necessary to choose them with the highest class of strength.

For outdoor sewage manufacturers make special pipes and paint them in red or brown. For internal communications, these products are painted in dark gray.

To external sewage served long and efficiently, you must use pipes:

• Smooth polymer. They are often made of PVC, but there are also polypropylene products.
• Corrugated polymer. They are made of polyethylene, but there are many copies of polypropylene.
• Asbestos cement.
• Cast iron.

Today, homeowners prefer polymer pipes. And where the load is particularly high, it is recommended to use corrugated products. Most often, people choose products with a diameter of 110 mm. Remember that not only these materials will need to buy, but also shaped parts.

Work plan

The process itself is conditionally divided into three parts:

• excavation;
• installation;
• burying

Excavation

Naturally, before laying the sewage system, it is necessary to prepare trenches of suitable size. Here are a few rules that can simplify the process itself:

• Independently digging a trench is quite difficult, so it is better to entrust it with earth moving equipment.
• The trench should be wide enough for a person to work with sewer pipes, feet touching the bottom of the pit. For example, for standard products with a diameter of 110 mm you will have to dig a trench 60 cm wide.
• Much more difficult is the question of depth, since no one will tell its optimal value. According to the rules, the bottom of the trench should be half a meter lower than the depth of soil freezing. In practice, everything turns out to be different - the pipes are laid above this level, but additionally insulated.
• When digging a trench, it is necessary to make a small slope, which, as a rule, is 2 cm per meter.
• According to the design documentation, the pit for the water supply should be of a certain depth, but in practice it should be made deeper by 10 cm, which will allow you to create a cushioning pad.
• Boulder-shaped defects found in the trench should be removed and the bottom carefully tamped.
• The bottom of our pit must be covered with gravel or sand. Embankment of the embankment is not required, but where the inspection wells will be installed, it is necessary to compact it by two meters in all directions.

Installation

• To begin installation it is necessary from that place from which the internal sewerage comes to an end.
• Pipe products are laid along the trench. Rattles must be placed in the opposite direction from the movement of sewage.
• If it is necessary to organize a turn, then bends can be taken only with an angle of 15 degrees or 30. It is strictly forbidden to use products at 90 degrees.
• Do not forget about the audit wells, with which you can repair or clean sewer pipes.
• Pipe insulation is recommended to do materials with polyethylene foam and only if it is provided.

Pipe connection

After thorough cleaning of the socket, we check the presence of the rubber ring, which serves as a seal. We do cleaning of the ends of pipes. Pre-worth checking the depth of the occurrence of tubulars in the socket, noting with a pencil on the smooth end.

Silicone grease or soap can be used to facilitate bonding. Now you can insert the pipe into the socket, after having been lubricated. The pipeline may be subject to linear deformations, therefore it is recommended to insert the pipe not up to the end, but leave a gap in the centimeter. Here the marker left by a pencil will come to the rescue.

Burrowing

Before falling asleep trench, it is recommended to check the slope of the pipeline again. For about 10–15 cm, the pit is filled exclusively with sand, which is carefully tamped along the edges of the pipes. Pressing sand over the pipe is strictly prohibited. Now it is possible to continue the instillation of the sewer pipeline with ordinary earth.

It is not difficult to lay pipes, but this process requires time, effort and accuracy. The pipeline will work efficiently and for a long time if all relevant standards are observed during its installation.

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Video

We offer to watch the video, which will help you avoid a number of serious mistakes when installing sewage pipes with your own hands.