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Author:
gmum (IL)
I have a few old valves that have a bit of white crust on them. I don't see water leaking though... but I assume the crust is from moisture.
What is this crust and should I be concerned about it if I don't otherwise see a drip?
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Author:
Wheelchair (IL)
Lime/ scale. An old rag soaked in white vinegar, laid over the handle/stem overnite to resolved the crusty crust.
Best Wishes
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Author:
gmum (IL)
Some of that might be on the body of the valves but I figured it was something else since its around the packing nuts and a few joints I have seen... evidence of a dried leak?
Or would a leak be more of a green crust/buildup?
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Author:
Wheelchair (IL)
The color could be influence by the liquid, humidity and the acidity of the area. You could also tighten the bonnet nut if you think it might help.
Best Wishes
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Author:
gmum (IL)
If you find this crust on valves and such, do you recommend replacement?
also:
similar to the white crust, I also wonder about green copper oxide....
That is classified as corrosion. I assume an underground copper pipe is green and black, in other words corroded.
How come the pipe doesn't catastrophically fail?
Do unsleeved pipes fail where they touch concrete? BTW: of all the houses I have lived, I have never seen a sleeved pipe where it enters the foundation of a basement. Is that not standard?
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