Thanks for the help. The water is leaking from the front of part number 248734 where the pin pushes out. I have taken it apart cleaned it and put it back together. No leaks at the moment but this is probably only a very short term solution. Should I buy the entire assembly or will silicone...
I had a slight leak from the pressure differential valve and bought a repair kit. However my assembly is held with 4 screws and the diaphragm is 46mm across with the active area approx 38mm. What kit/ diaphragm do I need?