How does an overflow system work on a cesspool or septic tank?
All of that water has to go somewhere. But where? Find out here.
Most tanks let the solids go to the bottom; the water continues to fill the tank and then gently overflows through a pipe (dip-pipe) into a soakaway tank. This is usually filled with rubble and filters the water and let it soak away into the ground.
If you don’t get your tank emptied solids can start overflowing into the soakaway and this will get clogged up and stop working.
Some tanks you can also put a reed bed system in which cleans the water which can be then allowed to go into a ditch – but this is a specialised area and the water has to be clean before it is allows to do this.