Recent content by DmitriyL

The system pressure was quite low and when I was working in the loft I happened to pickup the expansion tank (on the flex pipe) and it felt empty. When I pressed the air bleed valve the air came out and the tank noticeably filled with water. This would imply that the other expansion tank has...

What PH reading should the water read then? I do (supposedly) have Fernox inhibitor + leak sealer in the system.

The whole system is 2 y/o inc boiler. Not serviced yet. System has 2 expansion tanks (one small in the boiler) and 1 in the loft. Both have been tested for charge and are OK.

Hello everyone. A 2 y/o closed central heating system is working but is a continuing source of puzzlement for me. One of the topmost radiators keeps accumulating gas of some kind. The system has been pressurized at 2.4bar and all radiators checked for air. 2 months on and the water pressure...

Hi, Loft conversion allows 50 cubic meters expansion before planning permission is needed and it is said to be the new roof space. However, if this conversion requires thick wall insulation application then surely that in itself will eat up a lot of space? Can that be compensate by further...