Shower Pump wont turn off

Rather than changing pump u have to change your old gravity system to main pressure

The most likely cause of the issue is the new shower mixer or shower head not fully shutting off the water flow, even when it appears closed. If there is even a small trickle of water, the Salamander universal regen pump, which is flow-activated, may continue running because it senses ongoing usage. Since the bath and basin taps fully shut off mechanically, the pump stops as expected with those fixtures. But if the shower valve or cartridge is slightly faulty, or if the design allows minimal flow after “off” position, the pump will keep running. Other possible contributing factors: – A faulty or semi-blocked shower valve cartridge – Backflow causing false activation – An airlock in the system – An overly sensitive flow switch inside the pump – Pressure imbalance between hot and cold feeds Professional opinion: 🛠️ This is most likely an issue with the newly installed shower fittings, not the pipework or pump itself. A proper flow test should be carried out to see if water is still moving through the pipe when the shower is turned off. Final note: A site inspection is strongly recommended to assess the exact setup, check the valve behaviour, and confirm whether the pump is being falsely triggered by residual flow or pressure issues.

Change the pump