I'm doing some decorating at home and needed to remove the radiator. I still need to be able to use the gas heating throughout the house while the radiator is off.
I closed the TRV and lockshield valve, I then loosened the lockshieled valve nut and proceeded to drain the radiator. Once empty I removed and all was well.
My gas boiler was at 1.5 bar before this work, and 0 after - I expected this. I topped up the boiler pressure slightly to around 0.5 (by opening the valves), then I had a quick look at the radiator pipes and noticed that the lockshield valve side was leaking, a constant dribble of water. The water was coming out of the lockshield valve housing (the threaded part where the radiator connects). Image attached.
Was this because I repressurised the gas boiler? Should I have capped off this lockshield valve housing somehow one the radiator was removed?
I panicked and put on the radiator again! So, not sure where to go from here really :/ My gas pressure is now at 0 again, although I still had hot water this morning.
Any advice is appreciated.