Product Overview The most popular, lowest maintenance solution prEN1825 compliant, available in any size up to 275,000 litres A simple two chamber tank where wastewater enters the chamber where settlement of any debris occurs Wastewater then flows into the gravity separation unit where grease and oil rise to the surface A low level pipe takes separated, clean water from the second chamber and releases it into the drainage system The surface layer of grease remains in the tank until removed by waste disposal contractor