Maybe on more than one occasion you forgot the water while you were filling your cisterns .... flooding the house!!!. This is a typical situation that surely happened to more than one of us.
But you can avoid this by using the Water GrowMax float valve kit.
This will stop the Filter or RO unit from producing when the water reaches the height of the float valve in the tank.

Thus, water overflow as well as water waste is also prevented.

Floating valve to automate the filling of cisterns serving reverse osmosis filters.
Supplied with quick coupling fittings:

- 1/4" 
- 3/8"