Septic tank

Your septic tank is usually made up of two ‘chambers’ and
buried underground. They can be brick built, or made from
fiberglass or plastic.
The ‘tank’ holds the sewage – the solids either fall to the
bottom or float to the top and the liquid drains through a
pipe into a drainage field or soakaway. This drainage is really important as it removes any remaining pollutants before the liquid reaches groundwater.

Septic tanks generally need emptying every 12 months.