Plumbing - leaking tap or pipe or ???
Discussion
We've got damp problems in the downstairs loo. It seems some of them were present before we bought the house (17 years ago) and hidden by the previous owners, but that's another story.
The one I'm currently trying to properly solve is linked to the hot tap in the room above. It has, it seems, been leaking on and off for a while, eventually wrecking the shelving in the room below. Everything is stripped out downstairs now while I try and fix it. The waste for the bath comes through the floor/ceiling and was boxed in a corner downstairs. We've had a problem with this waste before, and assumed to start with it was something similar, but actually the water was falling away from the waste pipe. A plastic tub on the floor picked up 5-10ml every few days, but it wasn't a constant drip. Water appearing in the tub had no relationship to any use of the bath, shower, anything. For example, once we noticed it dripping just before midnight when no-one had even been in the bathroom since the morning.
Looking up the hole in the ceiling, you can see the waste pipe and the hot water pipe which is all green around the T-joint that takes a pipe upwards to the bath tap:
This is where the water is dripping from, but not where it's starting out from, I believe.
The bath hot water tap upstairs had gone a bit on the wonk, having been knocked a couple of times. I was reluctant to turn it back, in case it unscrewed itself from a joint underneath. I had noticed water around the base of the tap previously, but tended to assume it was from the shower or shower curtain leaving water there. However, drying it all completely showed that some water was appearing there, and running into the bath making a small puddle over several hours. But this seemed to be fairly continual, where the water making it downstairs was not continual at all.
Once I'd bashed the tiles off the side of the bath (when the bathroom was redone, I said "Please just make sure the side of the bath is removeable"... well, it kinda is, just requires a hammer and cold chisel and re-gluing and re-grouting when it goes back together
), this is what I got:
The hot tap is, of course, the one furthest away, with lots of verdigris. Everything was dry, as far as my finger and a sheet of loo roll could tell.
Not being able to identify the leak immediately, I got a glamourous assistant to hold the tap square and tightened up the nut with the red arrow in the first picture as best I could with a slightly too big tap spanner.
Now, all the leaks have stopped. No drips in the tub downstairs, no seeping around the tap base, no wet on any of the pipework.
It seems that tightening that nut has solved the problem, but I don't quite believe it. As I understood it, that wide threaded tail coming out of the tap is a solid part of the tap itself... but the only way I can see tightening the nut fixing the leak is if that is not the case, there is a joint inside the tap somewhere, and the nut I turned has rotated the whole tail inside the tap, or otherwise pulled something down tight enough to seal it again.
While it's tempting to chalk up a win and put everything back together, I'm not convinced that there's not something still basically wrong and I'd only be storing up trouble for the future. And I'm not sure how/why it was arriving downstairs intermittently either - could it follow that twisty flexi all the way down?
If anyone can shed any light on all this, I'd be very grateful!
The one I'm currently trying to properly solve is linked to the hot tap in the room above. It has, it seems, been leaking on and off for a while, eventually wrecking the shelving in the room below. Everything is stripped out downstairs now while I try and fix it. The waste for the bath comes through the floor/ceiling and was boxed in a corner downstairs. We've had a problem with this waste before, and assumed to start with it was something similar, but actually the water was falling away from the waste pipe. A plastic tub on the floor picked up 5-10ml every few days, but it wasn't a constant drip. Water appearing in the tub had no relationship to any use of the bath, shower, anything. For example, once we noticed it dripping just before midnight when no-one had even been in the bathroom since the morning.
Looking up the hole in the ceiling, you can see the waste pipe and the hot water pipe which is all green around the T-joint that takes a pipe upwards to the bath tap:
This is where the water is dripping from, but not where it's starting out from, I believe.
The bath hot water tap upstairs had gone a bit on the wonk, having been knocked a couple of times. I was reluctant to turn it back, in case it unscrewed itself from a joint underneath. I had noticed water around the base of the tap previously, but tended to assume it was from the shower or shower curtain leaving water there. However, drying it all completely showed that some water was appearing there, and running into the bath making a small puddle over several hours. But this seemed to be fairly continual, where the water making it downstairs was not continual at all.
Once I'd bashed the tiles off the side of the bath (when the bathroom was redone, I said "Please just make sure the side of the bath is removeable"... well, it kinda is, just requires a hammer and cold chisel and re-gluing and re-grouting when it goes back together
), this is what I got:The hot tap is, of course, the one furthest away, with lots of verdigris. Everything was dry, as far as my finger and a sheet of loo roll could tell.
Not being able to identify the leak immediately, I got a glamourous assistant to hold the tap square and tightened up the nut with the red arrow in the first picture as best I could with a slightly too big tap spanner.
Now, all the leaks have stopped. No drips in the tub downstairs, no seeping around the tap base, no wet on any of the pipework.
It seems that tightening that nut has solved the problem, but I don't quite believe it. As I understood it, that wide threaded tail coming out of the tap is a solid part of the tap itself... but the only way I can see tightening the nut fixing the leak is if that is not the case, there is a joint inside the tap somewhere, and the nut I turned has rotated the whole tail inside the tap, or otherwise pulled something down tight enough to seal it again.
While it's tempting to chalk up a win and put everything back together, I'm not convinced that there's not something still basically wrong and I'd only be storing up trouble for the future. And I'm not sure how/why it was arriving downstairs intermittently either - could it follow that twisty flexi all the way down?
If anyone can shed any light on all this, I'd be very grateful!
RGG said:
Isn't this where there is minor seep?
The top of the flexible hose and by tightening the tap retaining nut, the movement has had a secondary effect of "resealing" the leak (Or maybe not for permanence?)
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