Bleed down the pressure tank and drain the water from it – check the diaphram for soundness (if fitted) and repressurise the tank.
Over time the air pressure in the top chamber sometimes leeks away and makes the pump turn on and off all the time.
Down here we fit rubber bladders inside the tanks to keep the two components air and water apart.
Selgas Services Ltd
Craftsman Gasfitters, Plumbers, Electrical Service Technicians