Hi all.
I've identified a leaking TRV on a downstairs rad (but not before the carpet was wet long enough to start to smell mouldy, ick). Googled a fair bit because plumbing's not really my thing and I don't really want to get in to draining down the system.
It's a sealed system, combi boiler.
TRV is leaking from around the pin. Still functions how it should but it's clearly a reasonable leak going on to have made such a big area of carpet so wet (about a square foot). Had the head of the TRV off before to fix sticking pins/valves - this being one that had previously stuck. Didn't use WD40 - smeared a bit of silicon grease on the pin when I freed it off (just by pushing it in/out carefully) back then.
As I said, I know to change the valve I'm looking at having to drain system, and no wish to get in to doign that, but elsewhere here I saw advice to tighten the hex nut the pin goes through.
I can see TWO hex nuts, not sure which I should be tightening. The upper one just spins freely it seems, made of plastic? Lower one is metal, and slightly bigger than the plastic one at the top of the valve.
Which of these hex nuts should I be tweaking? Photo attached...
Thanks! View media item 74942
I've identified a leaking TRV on a downstairs rad (but not before the carpet was wet long enough to start to smell mouldy, ick). Googled a fair bit because plumbing's not really my thing and I don't really want to get in to draining down the system.
It's a sealed system, combi boiler.
TRV is leaking from around the pin. Still functions how it should but it's clearly a reasonable leak going on to have made such a big area of carpet so wet (about a square foot). Had the head of the TRV off before to fix sticking pins/valves - this being one that had previously stuck. Didn't use WD40 - smeared a bit of silicon grease on the pin when I freed it off (just by pushing it in/out carefully) back then.
As I said, I know to change the valve I'm looking at having to drain system, and no wish to get in to doign that, but elsewhere here I saw advice to tighten the hex nut the pin goes through.
I can see TWO hex nuts, not sure which I should be tightening. The upper one just spins freely it seems, made of plastic? Lower one is metal, and slightly bigger than the plastic one at the top of the valve.
Which of these hex nuts should I be tweaking? Photo attached...
Thanks! View media item 74942