Home made DIY Grey water system water recycling.

Step 8 Making the control box

The control box is basically 2 relays. The relay wired to the collection tubes switch is wired as normally open. The relay for the tank in the loft tank switch is wired normally closed.

So when the water level in the collection tubes drops to low the ball cock drop causing the arm to move away from the side of the tube. switching of the relay isolating the power to the pump.

The relay in the loft is off until the water level get towards the top of the tank. Then the magnet activates the switch causing the relay to switch on which will turn off the pump.

When the tanks are half full the circuit will switch on the pump and pump the water from the collection tube to the storage tank until ether the collection tubes empty or the storage tank is full.