Not sure if in the correct thread.
Pump model:- WM-P150XS
My main water pump to the house is surging about every 5 or 6 seconds, have checked the obvious for leaks, hoses, taps and toilets but no leakage anywhere, obviously the pipes go under the ground covered by flags. So at this moment in time I have to assume no leaks there. So the conclusion is it must be the pump, the pump is about 8 years old and we get our water from an underground well, as does the rest of the development and the water is very calcified, so I was wondering is there a valve or something else that may be suffering from a build up of calcium. Can any other member point me in the right direction of where to start the fault finding. Thanks