I have a booster pump for the house hot water system. It has worked extremely well for the last 4 years supplying hot pressured water to the whole house. In the last few week the pump comes on every 5 mins for 5 secs when there is no water demand. I have looked for water leaks everywhere and everything is bone dry!
There is obviously a leak somewhere (unless pump is knackered after 4 years - it does get a lot of use), can anyone please tell me how I can possibly trace such a small flow of water, as it may well be hidden behind partitions walls etc.