Submersible pumps are installed within a rainwater storage tank, but most require a pump controller that cannot be submerged or flooded. Surface pumps are typically installed within a nearby building or pump enclosure.

Requirements for a pump/household water system:

• Pipework designed to specifications (refer to pump performance curves)

• High efficiency in internal pump design

• Consistent use of high-quality, corrosive-resistant materials throughout high-quality bearings, ease of maintenance

• Operation without diaphragm pressure vessels by use of alternative pressure system controls

• Quiet-running, low-noise (multiple-stage pumps) and sound insulated with flexible connections to the pipework

• Proper installation of the pump with “run dry” protection

• No large pressure tanks filled with water to the exclusion of oxygen

• Low suction height for suction pumps and a short, airtight, suction feed pipe