I've spent the last few months trying to track down a gradual pressure loss in my CH and it's getting beyond frustrating.
Initially, I was losing 0.1-0.2 bar every day.
What I've done so far:
1. Checked every radiator valve - found a leak on one which has now been fixed.
2. Checked all Drayton TRV4's - found a few where water was being released when CH cooling down. Tightened gland seals and believe these are now fixed.
3. Checked relief valve is not discharing into tundish.
4. Checked condensate is not leaking when boiler off (HEX leak)
5. Checked EV pressure.
6. No visible signs of water anywhere on floor or ceilings
7. Tried wrapping tissue around all of the non-TRV valves to see if they are seeping. Nothing found.
I'm now losing approximately 0.05 bar every couple of days. So it is very minor and I imagine that whatever water is escaping is evaporating before I can see it.
Any further suggestions?
Initially, I was losing 0.1-0.2 bar every day.
What I've done so far:
1. Checked every radiator valve - found a leak on one which has now been fixed.
2. Checked all Drayton TRV4's - found a few where water was being released when CH cooling down. Tightened gland seals and believe these are now fixed.
3. Checked relief valve is not discharing into tundish.
4. Checked condensate is not leaking when boiler off (HEX leak)
5. Checked EV pressure.
6. No visible signs of water anywhere on floor or ceilings
7. Tried wrapping tissue around all of the non-TRV valves to see if they are seeping. Nothing found.
I'm now losing approximately 0.05 bar every couple of days. So it is very minor and I imagine that whatever water is escaping is evaporating before I can see it.
Any further suggestions?