The Grundfos PM Rain is an interconnect device that allows you to utilise your harvested rainwater for toilet, laundry and garden applications, with the added benefit of mains water backup.
The PM Rain can be used in conjunction with the Grundfos JP and JP Rain range of pressure pumps or the submersible Grundfos SB pump, making it the ideal solution for above or below ground tanks. The pump itself is only activated when rainwater is being drawn from the tank. It does not operate when switched to mains.
The PM Rain automatically starts when a demand is sensed, for example the flushing of a toilet or filling a washing machine, and will switch over to mains water when your tank is empty or in the case of an electrical failure.
Grundfos has incorporated a specially designed valve eliminating the need for an in-tank float drastically decreasing installation time.
The easiest, quickest system to install
Does not require any regular maintenance
Dual check valve for backflow prevention
Suitable for above and below ground tanks
Features automatic changeover and water source indication lights, and leakage detection (to prevent rapid cycling)
Will automatically switch to mains water in the event of a power failure
The Grundfos PM Rain, JP Rain, JP and SB all comply with AS/NZS 4020-testing of products in contact with drinking water
Always install under cover to protect from the elements
Two year Grundfos warranty