What pipe to use for sewage underground

In our civilized century, the presence of sewage in the house has become commonplace. Every homeowner is trying to spend this benefit of civilization to their homes. And on this way, it will inevitably be necessary to decide which pipe to use for sewage under the ground. On sale there are many varieties of pipes. In this article we will talk about the pros and cons of each option.

What are the requirements

The laying of sewage pipes in the ground requires the use of a special material. Such products must:

1. To withstand heavy loads. As a rule, sewer pipes in a private house are laid without the use of ducts, so they must withstand the pressure of the soil.
2. To tolerate aggressive environmental influences. Moisture, acids, and alkalis, as well as other substances in the ground, have a detrimental effect on any object that is in the ground.
3. Have a long service life. Laying sewage requires excavation work, which can take a lot of manpower and equipment. Therefore, the pipes should serve for a long time.
4. Have good bandwidth and not clog. Clearing underground sewage is difficult. If the blockages appear constantly, or the drains go badly, then the whole system will have to be redone.

Determining which pipe is best suited, it is necessary to rely on these qualities.

Which pipe is better to choose

Previously, most sewage pipes were made of cast iron. This material is quite strong and durable. But he has a lot of flaws:

• the cost of cast iron pipes is quite high;
• such products weigh a lot, and it’s almost impossible to mount the whole system by yourself;
• the inner surface of the pipe has roughness, which affects the ability to pass, and over time such pipes become clogged;
• can not be used in saline soil. Cast iron under the influence of salts quickly becomes useless.

It is for these reasons that cast-iron sewer pipes are practically not used today. They were replaced by pipes made of polymers. Such products have their own classification, each type has its own pros and cons.

For outdoor sewage used products made of polyvinyl chloride. These are orange PVC pipes. They perfectly withstand the aggressive effects of the environment, have a smooth inner surface (which prevents blockages) and a long service life. But such pipes do not tolerate high temperatures. If liquids with a temperature above + 40 ° C prevail in the drains, the service life of the products is greatly reduced.

Tip! Gray PVC pipes are often used for laying domestic sewage. But for outdoor work, they are not too suitable. Such products are too soft and can not withstand heavy loads from the outside. The wall thickness of the product is only 2.7 mm.

Today there is a kind of pipes for sewage made of polypropylene - corrugated. Such products are very popular in industrial enterprises. They endure high temperatures. Their strength is much higher than that of ordinary smooth products.

Tip! Even when laying to a depth of 2 meters, the pressure of the soil will not damage the polypropylene corrugated pipe.

Also available corrugated version of polyethylene pipes. Such products are ideal for laying sewers underground. Polyethylene itself is a fairly durable material, and the use of a corrugated structure increases resistance to external influences several times.

Tip! Corrugated polyethylene pipes can be deepened to 15 meters in the ground, without fear of crushing them. Also, such products easily tolerate temperature drops (unlike orange PVC pipes, polyethylene is not afraid of hot effluent) and aggressive environmental exposure.

Also, these products have excellent bandwidth. Pipes have a corrugated outer surface. Inside, they are absolutely smooth and do not form a blockage.

There are also not so often used materials. For example, asbestos-cement pipes that weigh less than cast iron, withstand heavy loads and easily tolerate aggressive media. But asbestos-cement pipes are quite fragile and it is more difficult to assemble them than products from polymers.

PVC products are cheaper. They are strong enough and serve for a long time, but if you pour a lot of hot water into the sewage system, such pipes will quickly become unusable. PVC products are ideal for small country houses and suburban areas.

Corrugated polyethylene is more expensive, but it is more stable and reliable. Sewage of such pipes will serve more than a dozen years, without annoying the homeowner with constant blockages.

Video

More information about the characteristics and manufacture of sewer pipes in the following video: