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Leak from Self Tapping Saddle Valve

0 votes
The valve itself is not leaking, but there is a steady drip from the far end of the line leading from it. It seems to actually drip more, the more I tighten the valve. Is it possible that the piercing pin has made a whole too big and when tightened all the way, it can no longer "fill in" the hole to stop the water flow? The valve is quite old, so I don't mind replacing it, but do you think that even a new valve placed over the old hole will have the same problem? Thanks.
asked in Plumbing by 4credit (120 points)
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1 Answer

0 votes
Hi 4credit,

The hole in a water pipe has nothing to do with this drip. The middle section of the piercing pin, maybe halfway between the piercing tip and the handle is thicker / tapered. When you turn the handle to close the valve that tapered part should stop water flow. It’s made out of brass and very small so after a few closings-openings or even without touching it for several years it might have deteriorated and stopped performing properly. Replacing the valve should fix the problem.
answered by darekrudy (21,730 points)
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