So long as the cold-water storage is held in the loft and the pump is installed at the base of the hot water cylinder, then a regenerative pump doesn’t need a flange to be installed in this scenario. As a result, regenerative pumps don’t necessarily need to be protected from air as much as a centrifugal shower pump does.Ī regenerative shower pump can be teed on the first downward leg, as the hot water comes off the hot water cylinder. The impeller within a regenerative pump is quite chunky, making these pumps robust, and therefore less susceptible to damage from aeration. Between the inlet and the outlet of the pump there is a stripping block, this strips the water from the impeller and directs the water out of the top of the pump. Water enters the pump through the inlet, the impeller spins the water around inside the impeller casing, building pressure as the water travels around the end of the pump. Regenerative shower pumps, such as our CT range of pumps, have a water wheel impeller inside the end of the pump. Our Training Manager, Ken Vance, explains how a centrifugal and regenerative shower pump work, and how the differences between these pumps can impact the installation.

It is important to understand the two different types of pump available when choosing which shower pump to install. Not sure if you need a centrifugal or regenerative shower pump, or want to know the differences between the two? Read on or watch our video for further information.

DIFFERENCES BETWEEN REGEN AND CENTRIFUGAL PUMPS?

Centrifugal pumps water