Your quote request : PLUMBING SANITARY (Septic tank)
PLUMBING SANITARY:
- Septic tank 
Intended to receive the sewage water, a septic tank is an element of a sewerage-system. It is used in rural areas that do not have a sewer system.
The septic tank comprises a container, generally made of concrete, wherein the solids settle out and are liquefied by the action of anaerobic bacteria. Thus, pretreatment of wastewater is done before they are discharged into the environment or to a water treatment plant.