How to make a cesspool

21-07-2018

Useful

The need for a cesspool, located on the territory of a private farm and used to collect sewage from the sewage system at home, no one in doubt. And indeed, in the absence of this component of wastewater communications, it is unlikely that you will be able to create normal conditions for managing a personal plot. In the article we will tell you how to make a cesspool in the country (in a private house) of various materials.

Choosing a location

First of all, you need to determine the place for the pit, based on the following considerations:

the distance from the pit to residential buildings should be at least 6-8 meters (SES requirement);
the section of the sewage system running from the house to the pit should not be too long;
Your cesspit should be located in a place suitable for arranging access roads for the recovery truck.

Close to the place of planned placement of the pit, there should be no sources of drinking water, the minimum distance to which is specifically regulated by SES standards (at least 30 meters).

Immediately, we note that such an indicator as the level of groundwater at the site of the proposed placement of the pit is not of fundamental importance. Its value will need to be considered only when choosing one or another structure of this structure (hermetic structure or cesspool with filter drainage).

Pit capacity

The performance characteristics of the cesspool option you choose are also determined by the correct calculation of its working volume. This parameter depends, as a rule, on the frequency of use of economic services in your home, which in turn depends on the number of its permanent residents.

It is believed that on average per resident should account for up to 0.5 cu. m volume of a cesspool, which is, of course, a fairly rough estimate. The value of this parameter depends to a large extent on the condition and quality of the soil at the site of the pit arrangement (loamy soils, for example, impede the normal filtration of drainage water, which will require an upward adjustment of this indicator).

In addition, the saturation of the soil in the area of the cesspool with greasy waste makes it difficult to filter the incoming wastewater and makes it necessary to choose its volume with a decent margin (it is believed that a family of 3 people can be satisfied with a working volume of the pit of about 6 cubic meters).

The choice of material and shape

Proper solution of the question of how to properly make a cesspool involves the choice of material for its manufacture, suitable for your conditions. Note that for the arrangement of structures of this type, the following materials can be used:

brick;
various types of plastic;
concrete rings.

The shape of your sump can be any, but usually it is determined by the configuration of the tank of your choice. Practice has shown that the most optimal form is a conventional cylinder, due to the mechanical strength of which it is possible to evenly distribute the load on the walls of the structure. Cesspools with rectangular shapes are noticeably inferior to cylindrical tanks, since cannot withstand large loads due to the uneven distribution of their distribution among the structural elements.

Pit of concrete rings

In our case, we will consider the procedure for mounting a drain accumulator assembled from typical reinforced concrete billets of the ring type. Please note that the installation of reinforced concrete rings is impossible without the use of special lifting equipment, so you should worry in advance about its order.

The finish ring should rise about 20 cm above the ground.

The sequence of operations on the arrangement of the pit is in this case as follows:

First, you prepare a pit, the size of which approximately corresponds to the diameter of the prepared rings.
From above, with the help of a crane, install the first ring, and then select the excess soil so that the workpiece is fully seated in the ground (due to its weight).
After that, a second ring is installed on top, having the same landing size. The protrusions on the rings will allow you to join the blanks together and prepare a monolithic structure from them.
Continue to choose soil until the finished ring design finally settles to the bottom.
For installation of a typical cesspool, you will need no more than 2 or 3 rings (this depends on the selected depth of the pit).

At a level of 20 cm above the ground, the finished well is blocked by a reinforced concrete lid with a manhole for pumping out waste, and a neat earthen bed is made at its edges.