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.
Typical Applications The robust Grundfos JP stainless steel jet pressure pump is the premium choice in external pumps for rainwater harvesting. The JP 5 PM Rain is ideal for single and two storey homes to service one or two toilets, laundry and one garden tap supplying 65 lpm @ 150kpa and 50 lpm @ 200 kpa.
Key Benefits
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
Pump and controller complies with AS/NZS 4020-testing of products in contact with drinking water
Maximum flow rate-pump 75 lpm
Maximum mains pressure – limited to 200 kpa
Maximum water temperature 40 degrees Celsius
Maximum ambient temperature 50 degrees Celsius
Mains water inlet size via dual check valve ¾” female BSP
Voltage 240V, 50Hz
480 watts
56 lpm @ 150pka
51 lpm @ 200kpa
Always install under cover to protect from the elements
Two year Grundfos warranty
As a tap guide - 1 tap = 10 litres per minute *1 sprinkler = 15 litres per minute.
