Hello. This heating system keeps seeing pressure drops (down to zero) every few months but now increasing in frequency. It can be successfully re-pressurised with the filling loop, but then drops again over a period of time.
There are absolutely no discernible leaks, inside or outside the house. Can anyone suggest what the problem may be?
It is the sort of system with a boiler, hot water cylinder, but no header tanks.
Thanks,
There are absolutely no discernible leaks, inside or outside the house. Can anyone suggest what the problem may be?
It is the sort of system with a boiler, hot water cylinder, but no header tanks.
Thanks,