Why is the seepage pond wall and the hole?
The interior walls of the septic tanks must be plastery and should be waterproof.
Septic tank is to leave a hole because the septic tank filter is to rely on the reserved hole filter, did not stay in the specific requirements of the location, will affect the filtration of feces and sewage.
When the dung water piled up, so dilute it will flow through the hole to another pool, so thick to stay in the original hole that.
The fecalization of septic tanks requires two procedures to complete. The first pond is the accumulation of fresh feces. Because fresh feces easily plug the sewage pipes, so after the feces accumulation pool for a period of fermentation, most of the feces fermentation. And then through the remaining hole into the other wall of the pool, and two fermentation tanks for further fermentation, until the investigation of the feces most of the fluid. This will not block the main pipeline of sewage. This process is called fecal image. But all the feces will not be completely fermented into liquid, there is a part of the solid precipitation. This is the reason for the need to clean up the septic tank once in one stage.
