In order to achieve the optimum running of your pool heat pump we recommend that you fit a pool bypass kit. This kit allows you to control the amount of water flowing through the heat pump to achieve maximum heat transfer into your pool water. Our Pool heat pump bypass kit is designed to be used with all our ranges of pool heat pumps. In order for a heat pump to operate at its maximum efficiency you need to optimise the amount of water that flows through the heat pump for maximum heat transfer into the water, this is the role of a pipework bypass kit. Our bypass kit will fit 1-1/2" pipework, the most common UK pipework size, it also comes with 38mm hose tails to enable 38mm flexible water pipe to be fitted, the most common size with above ground pools.
See below how the bypass kit controls water through the heat pump: