Septic tank of concrete rings: features of the device

A septic tank is a structure that is intended for wastewater treatment. It is usually built on private plots where there is no access to central sewerage. The most commonly installed septic tank is made of concrete rings.

First, you need to excavate a suitable foundation pit . The rings are mounted on a concrete slab. Naturally, in advance you will have to calculate its dimensions (depending on how many people live in the building). For example, if the standard rate of water consumption per person per day is 200 liters, then this number must be multiplied by 3 for each inhabitant. You should also consider other factors: the arrival of guests, an increase in the family.

In order to isolate the septic tank from the influence of the external environment, it is necessary to close it with a cast iron hatch. And in order that it does not freeze in winter, it should be additionally covered with a wooden lid with a heater.

The device of the septic tank from concrete rings provides for the organization of ventilation, which should be above the ground at an altitude of about 0.7 m. If such ventilation is not organized, you will soon be bothered by an unpleasant smell.

Septic tanks made of concrete rings provide for the presence of an incoming and outgoing pipe, the diameter of which is 10 cm. To ensure that the flow of water contributes to uniform sedimentation of the slurry, it is necessary to equip the sewerage with special cast-iron tees. Install them in such a way that they can be cleaned.

The septic tank of concrete rings should be calculated so that between the top crust and the slurry residue there is a layer of water, the value of which is about a meter. Therefore, the minimum depth of excavation should be approximately 1.2 m. As for the number of cells in the septic tank, there will be enough for a normal house and one. The liquid can stay in it up to 3 days.

If you use standard size rings for mounting, then 3 pieces are enough. The height of each element is up to 0.9 m. And you will need one hatch of cast iron and one reinforced concrete slab.

If you can not build a septic tank from concrete rings, using elements of standard size, then you can apply the reduced parts. So that the well does not turn out too deep, you can build two tanks next to each other and connect them in series. You will have two cameras.

According to the rules, this well must be sealed, therefore it is not recommended to mount it from other building materials. For additional insulation, you can encircle the rings on the outer perimeter with bituminous sheets.

If the septic tank made of concrete rings is made correctly, then your sewage will be quickly cleared, and the sediment, which will remain at the bottom, must be pulled out. And it can be used for agricultural needs. To monitor the purity of the septic tank should be constantly, only in this case it will work properly, and the pipes will not be clogged.

If you do not know how to build such a structure yourself, you can use the services of professionals.