The Evolution MkIV comes with a powerful submersible pump and AcquaSaver Mains/Rainwater switching device. Evolution MkIV is a simpler, more robust design with a slimline appearance.

When the rainwater tank runs out of water or when there’s a power outage the AcquaSaver will automatically switch to mains supply for appliances.

Rainwater/mains supply changeover devices are a regular requirement for modern rainwater harvesting services, ensuring consistent water supply, and supporting water efficiency and stormwater management objectives.

FEATURES AND BENEFITS

• 5 years warranty.
• Quick and easy to install.
• The small, lightweight unit fits neatly on top of the tank instead of the wall with a powerful and reliable submersible pump inside the rainwater tank.
• Automatically switches to mains water when there is no water present in the tank or during electrical failure.
• The design standard includes backflow protection.
• Integrated float switch to prevent pump from running dry at low water levels.
• The pump is only used when rainwater is being drawn from the tank, it does not operate when the Evolution MkIV unit is switched to mains water.
• Automatic pump operation.
• Submersible pumps are quieter than external pumps.
• Corrosion resistant pump components.
• Environmentally friendly - saves mains water, reduces flow to stormwater systems, no re-pumping of mains water.