Water pressures when pumping from a water tank

Rainwater pumped from rainwater tanks into a house with the Water Rhapsody Grand Opus may not exceed the pressure allowed for hot water cylinders of whatever type one uses. It is for this reason that Water Rhapsody has included within the override box an adjustable pressure reducing valve to suit the needs of any hot water cylinder if one should revert to municipal water supply. Whilst the rain water is pumped into the house one is quite safe from over pressurization as the Water Rhapsody pump is set to the correct pressure too.