3P Floating Intakes are the fourth part of the cleaning process in the rainwater tank.
The ball floats on the surface of the water at all times, leaving the intake suspended just beneath the surface where the cleanest water lies.
It ensures that no water is extracted directly from the surface, which usually has a film of grease and pollen that could be sucked in.
From this position the water is extracted by the pump. The check valve holds water in the extraction pipe to ensure the correct operation of the pump. It also prevents back-flow into the tank.