In a country house intended for permanent residence, it will not be comfortable without a well-organized sewage system. The cesspool needs frequent access to sewers, making life difficult for residents. Many people dislike the thought of a septic tank that needs cleaning several times a year.
But a well-installed septic tank without pumping out is the best choice, which can serve for a very long time without requiring your intervention.
Types of septic tanks for a country house differ in their principle of operation:
A septic tank without pumping for a private house or summer cottage is a structure in the ground.
It consists of:
Waste flows through the drain pipe into the first chamber with a concrete bottom, settles, and the sediment sinks to the bottom, where anaerobic bacteria gradually process them. The waste gradually decomposes and gives off gas which escapes through the vents.
When the first chamber is filled with water to the pipe connecting the chamber, water flows into the second.
If it is finite, then it does not have a solid bottom, if not, then it also has a concrete bottom, for a dense layer to settle. From this compartment, water flows into the next. The open bottom of the last chamber rests on a cushion of rubble and sand, and the water goes into the ground.
Anaerobic bacteria recycle almost all organic waste, so a septic tank without pumping may not need to be cleaned for 15 - 20 years.
It is also important to determine the volume of the septic tank.
The standard daily water consumption per person is 200 liters. The volume is calculated based on three days of continuous use of water and sewage. Accordingly, 4 people need a two-chamber septic tank, with a volume of 3 x 3 m each.
It is possible to equip a septic tank on the site of a private house without pumping out of concrete, reinforced concrete rings, bricks or using special plastic containers. It should be noted that brick and plastic septic tanks will not ensure the operation of a septic tank for more than 10 - 20 years.
The technology of arrangement is quite simple, if you do everything according to the instructions.
First, you need to determine the location of the septic tank, taking into account the level of groundwater and sanitary standards.
The construction of a septic tank in a country house begins with a pit. The common volume of a septic tank is an 8 cubic meter pit. m with dimensions 2x2x2 m.
If the septic tank will consist of plastic containers, they are installed in the pit on the already concreted bottom.
In the last container, the bottom is removed and placed on a cushion of gravel and sand.
This facilitates the flow of treated water into the ground.
When arranging it with the use of reinforced concrete rings:
A large diameter piece of PVC pipe is suitable for the connecting pipe. For ventilation, you can use the same small diameter pipes. We reinforce the joints between the pipes with concrete.
We make holes in the formwork for water drainage. To do this, we cut out round holes in the osb sheets for cutting pipes with a step of 0.3 m.To strengthen the osb along the perimeter of the sheet, after 0.5 m we attach a timber to it with screws.
Ideally, make a collapsible formwork so that it can be rearranged on other walls of the septic tank. The formwork must be reliably strengthened, for this it must be well wedged with a beam in the pit. After that, we insert the prepared pipe cuttings. They should go 5 cm deep into the soil.
Finally, close the lid on the cameras tightly.
Lids are provided in plastic containers, and for septic tanks made of other materials, it can be made in two versions:
Before starting the septic tank, it is recommended to punch holes in the ground, about 2 m deep, fill the bottom with large rubble and cover fine mesh. This will create excellent drainage that will help the water to drain into the soil.
An equally important factor is its ventilation, made from a sewer pipe brought to the surface.
This will allow the water to partially evaporate.
down the drain Allowed to be used for:
A competent device and the use of a septic tank in a private house will increase its term service several times. And the periodic use of modern biological products that decompose solid sewage allows you to avoid cleaning the septic tank for a long time.
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