To ensure comfortable conditions in a country house, a reliable sewage system is needed, which only a septic tank can pump without pumping. Anaerobic processes are absent in such devices, and therefore, hydrogen sulfide is not formed during operation, which, in turn, leads to absolute safety. These units are quite easy to use. They need to be cleaned only a few times during the year. Therefore, a septic tank for giving without pumping becomes the optimal solution, allowing you to effectively disinfect water. Its use allows significant savings on electrical energy and pumping.
However, even a septic tank without pumping will not be able to completely process waste effluents, since household waste includes more than one organic substance that is biodegradable. Also, the effluent contains a number of impurities that do not dissolve in water at all. Therefore, after some time, sediment still accumulates in special chambers. The remains of such impurities have to be eliminated sooner or later. However, this is carried out much less frequently than pumping out drains from an ordinary
cesspool.In order to understand what a septic tank is without pumping out, it is necessary to consider the standard principle of operation of
waste water treatment plants. They include: a supply pipe, a septic chamber, an aerator, a biogenerator, a secondary and tertiary sedimentation tanks and a discharge pipe. Although these units are called stand-alone, they imply the availability of electrical power for proper operation. It is due to the current that compressors supply air to the aerators. In some units, water is pumped using airlifts, but they are also largely dependent on electricity.
When the septic tank works without pumping, all drains are sent to the receiving chamber, which is usually larger than the others. Its task is to accumulate household waste in the form of a liquid and participate in the clarification of water. Light impurities like fats and insoluble carbohydrates are collected in the upper layers. After a certain time, their structure changes. Thus, the main share under the influence of yeast passes into a soluble form, and the other precipitates. Impurities that are
heavier than water, sink to the bottom and fall under anaerobic decomposition. The clarified water is gradually transferred further.
Once or twice a year, septic tanks are pumped out. The price of devices plays a large role in the number of operations that can actually be done with your own hands. In extreme cases, there are many services involved in the maintenance of such sewers. At a certain time, specialists will come and with the help of a drainage pump empty the contents of the sump. After flushing with a special device, the unit is ready for operation again. Of course, the cost of devices that do not require frequent pumping is much higher than simple sealed containers.