Hello, again.
Well, I checked everything I could and the final outcome is that: case 1 - the pressure rises to about 3 or more bar and the leakage is almost unnoticeable, case 2 - the leakage is quite serious and the pressure is stable around 1.5bar. Currently the case 1 is on. What I notice as well is that the pressure drops to 0 and leakage is gone when I close the main water feed to the boiler, and funny thing happens when I open hot water tap - the pressure rises by around quarter of a bar and drops back with a squeaking sound when I close hte tap. Important thing is that filling valve is 100% sealed. I'm about to remove the prv and possibly change it, but need to be sure if its really prv.
Thank you everybody for sparing some time
Andy
Andy
March 2010
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