AquaSaver 20mm Tank-To-Mains Changeover

SKU: AcquaSaver 20mm

Sale price$202.07


The AcquaSaver valve is a fully automatic mechanical rainwater/mains changeover device designed for a pressure pump supply system for harvesting rainwater for the toilet, laundry and household applications with automatic mains water backup. It's suitable for two toilets, a washing machine and a tap.


  • Hydraulically operated
  • Patent design
  • Easy to install
  • Watermark approved
  • Smart Watermark approved
  • 2 year warranty
  • No regular maintenance required
  • No electrical consumption or electrical components
  • Solid brass construction - Fully waterproof - Built to last
  • Suitable for any pressure pump with sufficient head pressure
  • Can be mounted in any position
  • Built-in dual check valve for backflow prevention


Max mains pressure
500 kPa recommended
Max pump pressure
600 kPa
Min pump pressure
300 kPa recommended
Recommended min pump cut-in pressure
200 kPa
Max flow rate
50 LPM
Max water temperature
Min water temperature
Pump inlet
25mm (1") BSPF
Mains water inlet
20mm (¾") BSPF
20mm (¾") BSPF
* Ensure proper protection against freezing weather

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