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LIGHT COMMERCIAL RAINWATER HARVESTING

RainSava Maxima

Compact, self contained rainwater management


A complete rainwater control system for larger homes and light commercial buildings, combining storage, pumping, controls and automatic mains backup in one unit.

  •  
  • ✓  350L integrated break tank
  • ✓  Automatic mains water backup with AA air gap
  • ✓  Plug-and-play pump and control system


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How the Maxima System Works

 What's Included?


  • What’s Included
  • Main rainwater storage tank with pre-fitted calmed inlet and anti-backflow overflow protection
  • WISY Vortex filter with 0.28 mm stainless steel mesh
  • 350-litre Maxima rainwater centre with integrated emergency overflow
  • Stainless steel multi-stage pressure pump housed inside the Maxima unit
  • Low-energy Zeta 02 pump controller with pressure gauge and system diagnostics
  • Submersible transfer pump for moving water from the main storage tank to the Maxima
  • Floating stainless steel suction filter fitted to the transfer pump
  • Automatic mains water top-up with compliant AA air-gap protection
  • 32 mm MDPE pipework and heavy-duty fittings for connection between the tank and system


Storage tank size is selected to suit the property, roof area and expected water demand.

Rainsava Gravity 

Pumped rainwater supply to a header tank for simple gravity-fed use. Reliable and economical.

Rainsava Eco-Pro 

Advanced Monitoring and smart controls for maximum efficiency and insight.

Rainsava Classic 

Simple reliable and automatic. Built in pressure switch pump provides hassle-free operation.