Compression supply valves are dripping
Posted by ed breyer on March 14, 2003 at 20:46:36:
I replumbed my house about 15 months ago using "L" grade copper. Under the sinks I used supply valves with compression fittings (to the 1/2" copper). Since then at least half of those valves have dripped at one time or another at the 1/2" compression fitting. None of the 150 or so sweat joints have failed.

When one does leak I first try tightening - if that doesn't work I remove it and reinstall it and that usually works - at least for awhile.

Is it possible that these valves are just crap? I got them at Menards. I'm now ready to go to sweated valves.

I hate to have to cut-off any of the pipe stubs - is it possible/advisable to sweat new valves in place without removing the compression ring (that is - sweat the valve on the pipe stub that extends past the compression ring)?


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