Plastic cesspools

To date, construction markets offer many options for devices used in plumbing. Among these systems, plastic sumps are popular. What are these constructions? Consider their advantages and disadvantages, as well as the method of installation.

Benefits

Plastic containers are quite popular because they have several advantages, among which are the following:

1. Along with low cost, the characteristics of these products are almost as good as reinforced concrete structures. In this case, the price of a single plastic sump will be lower than that of concrete rings. This option will undoubtedly be able to appreciate the family of two or three people who can not afford expensive plumbing systems.
2. In the manufacture of pits used modern technologies and materials. Polypropylene, which is used as a raw material, has a low specific gravity, easily resists corrosion, while possessing sufficient strength. Due to this, installation can be done without the use of heavy construction equipment with minimal use of manual labor.
3. Polypropylene has an airtightness that is much larger than that of concrete rings. At the same time, the plastic pit not only does not allow water to pass through, but also makes it impossible for unpleasant odors to come out, which, thanks to the special design, are retained inside.
4. The strength of such holes gives an invaluable opportunity to install products in any climatic zones, because these cesspools are not susceptible to deformation from critical temperatures or during their drops.

disadvantages

Do plastic cesspools have any drawbacks? Yes, but in general they are not very serious:

1. The lightness of the design forces the cesspools to be attached with chains or cables to the concrete slab laid on the bottom. This is due to the fact that over time, a product that is lightweight can be pushed out by loose soil or groundwater.
2. Random chance of damage from stones and other items. This problem can be eliminated if you reinforce the walls of a plastic pit with fiberglass.

Instead of cables attached to a slab of concrete, you can use "anchors" - a special design that represents cables with weights that will not allow the pit to float up.

Installation

If the weight of the sump is no more than 250 kg, then a group of people of about 5 workers will be able to easily carry out the entire process of mounting the product. How to start the installation?

At first it is necessary to determine the location on the summer cottage or the territory of a country house. It is best of all if the pit will be located near the road, so that it is easier to pump it out with the help of vacuum trucks.

If you install the pit too far from the nearest porous scavenger entrance, you can face a number of problems. For example, in the nightman, the hose length to the pit may not be enough, and if it also leaks, then puddles of sewage may remain in the yard.

When we have decided on the location, it is necessary to understand how deep the groundwater flows. After that, it is worth knowing the depth of soil freezing in the area where the sanitary system will be installed. This can be done by referring to the GOST tables or by asking those who have already carried out a successful laying of communications on the street.

By the size of the pit they dig a pit. You can dig it manually or using construction equipment. The second option is easier, easier and faster, but more expensive. When the foundation pit is ready, a base of concrete with a thickness of about 20 cm is made at its bottom, in which loops are made, so that cables are subsequently fastened to them. You can also lay a concrete slab on the bottom - however, in this case, the length and width of the pit may increase slightly. Concrete construction will not allow to land on the ground under a plastic pit.

The next stage is the lowering of the tank. To do this, put it on the edge of the pit, tied with ropes and gently, slowly, lowered down and expose. The dimensions of the pit should be 55–60 cm larger than the pit.

The remaining space between the walls of the cesspool and the walls of the pit is covered with loose earth or sand. If water is not poured into the container before this process begins, the soil that is poured in may crush the product, and the cracks that appear will not be repaired. How much water do you need to fill? Its level should be 20 cm above the top of the covered soil.

At the end of the set rings, then finally level the surface of the soil around the plastic pit.

What else do you need to know

If you follow a few simple rules during installation, you can guarantee the successful completion of the work and high-quality work of the cesspool during its further operation.

So, setting the slab under the pit or pouring concrete structure, you must adhere to the horizontal level. The distance between the walls of the pit and the plastic pit should be about 30 cm on all sides, at least 25 cm.

In addition to the above fiberglass, walls can be strengthened with brickwork - in this case, a distance of 30 cm should be from a plastic container to a brick. A low-quality brick will be suitable for a masonry device; it is not necessary to plaster it - it will not allow the ground to crush the walls.

If groundwater flows alongside, it is recommended to use a dry mix of cement and sand in the proportion of 1 × 4 instead of sand or soil.

If the pit is deepened in the ground by 0.5 m and more, then it is necessary to think out for it a reinforced concrete floor. Also, do not forget about the ventilation of the pit.

Over time, it is necessary to remove accumulated domestic sewage, and all work must be carried out timely and periodically. To do this, it is necessary to call a vacuum truck once a month. And to remove the smell in the pit, you can add special bacteria that convert thick sludge into a liquid mixture to make it easier to deflate.