Shut-off Valves With Scale Buildup Leak But Re-seal? - Plumbing - DIY Home Improvement | DIYChatroom
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Old 02-18-2016, 07:30 AM   #1
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Shut-off valves with scale buildup leak but re-seal?


I've noticed this in the past and have noticed this recently too. A globe/gate valve has scale buildup (near a leaking packing nut). I tried tightening the packing nut but it wouldn't budge. The valve still leaked small slow drops, even after a few days. But I noticed after a few weeks, this leak was non-existent. Have you ever noticed this? Is this because the minerals/scale in the water have essentially plugged the leak?
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Old 02-18-2016, 07:35 AM   #2
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yes, but they sell packing material that with the valve shutoff, you can take the packing nut off and put more packing in and then tighten the nut back down...leak fixed..
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Old 02-18-2016, 09:05 AM   #3
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Any time I can I replace or add a ball valve in the line.
That style valve is always going to be trouble.
Very common for then to not shut completely off or even have the stem break off.
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