Septic tank with biological filter system

Filled with the carrier material supplied, it increases the cleaning performance of a wastewater tank several times over. The large surface of the recyclable plastic carrier material (141 m2 /m3 ) allows the biofilm responsible for the cleaning process to cover a large area.

• Very good cleaning performance: efficiency over 90%, PIA-certified (Testing Institute for Wastewater Technology)
• No power consumption, no electrical or mechanical components (e.g. pumps or float switch) in tank
• Largely maintenance-free
• Installation in proven Graf tanks
• Easy to install with standard DN 100 pipes