What is a positive head shower pump?

A positive head pump will activate when a minimum flow of water passes through the pump and out of the pumped outlet, such as a shower or tap, naturally (without assistance from the pump). The minimum flow rate required for our positive head pumps is 2 litres of water per minute (L/min).

If you don’t have this minimum flow rate from all outlets that are to be pumped, or if you’re not sure, then you will need a universal (negative head) pump.