Rain Director ® solves practical rainwater harvesting problems

Problem 1 :

Typical rainwater systems have a pressure sensitive pump in or near the rainwater tank which maintains pressure on the pipe run to toilets, washing machines and any non-drinking-water tap. As pressure in the pipe run drops, the pump will start up again even when there has been no demand on the water supply. This creates a situation where the pump will hunt all day, i.e. turn itself on and off periodically, day and night. The moment of the pump starting draws a huge surge in power, which is repeated many times an hour. This effort also accelerates the wear on the pump bearings, seals and motor.

The Rain Director Solution :

Sensors start the pump only when all the water in the header tank has been used. No hunting. A 114 litre header tank would last for more than 10 full toilet flushes, or two clothes washing machine cycles. In a typical home the pump would only run about once a day. less electricity used. Much less wear on the pump.

Problem 2 :

Rainwater stored in a header tank inside the house gets brackish (stale and discoloured) after time. Rainwater stored under ground is maintained at a temperature hardly ever above 5 degrees C, so it does not get brackish.

The Rain Director Solution :

Rain Director’s® auto-empty function detects when the occupants is away from home ( for example, for holidays ) and empties the header tank every three days. Unused water is returned to the underground rain water storage tank. When the occupant returns home and starts using water, the system reverts to rain mode automatically.

Rain Director® features explored here

To buy a rainwater harvesting system with a Rain Director® visit our online store