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Old 05-10-2012, 02:45 AM
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Unhappy PVC union help - leaking

Hi guys,

Im having a bit of trouble with one of my PVC Unions. I was doing some plumbing modifications on one side the union, and when I screwed it back together Im getting a very slow leak from the threads on the union itself (not from where it connects to the pipes). Ahhhhh! Leaks are so frustrating. Any tips on how I can fix this??

Thanks.
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Old 05-10-2012, 02:47 AM
reefwars reefwars is offline
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Quote:
Originally Posted by aquatechy View Post
Hi guys,

Im having a bit of trouble with one of my PVC Unions. I was doing some plumbing modifications on one side the union, and when I screwed it back together Im getting a very slow leak from the threads on the union itself (not from where it connects to the pipes). Ahhhhh! Leaks are so frustrating. Any tips on how I can fix this??

Thanks.

teflon tape
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Old 05-10-2012, 02:53 AM
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Really? Right onto the union's threads? I thought we weren't supposed to do that??
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Old 05-10-2012, 03:05 AM
reefwars reefwars is offline
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ive used and seen it used many times whats the issue??
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Old 05-10-2012, 03:10 AM
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o-ring okay?
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Old 05-10-2012, 03:20 AM
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Default Check it

Check the o-ring not designed to be teflon taped...
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Old 05-10-2012, 03:47 AM
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Could be as simple as a grain of sand on the O-ring .. doesn't take much. Check for nicks or abrasions too. Worst case scenario, you can replace the O-ring. Home Depot, etc. carry various O-ring sizes but if you're really in a bind and can't find the right size, get one that's too big, cut it size and butt-end the cut ends together and glue together with superglue or frag glue. Should do the trick...
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Old 05-10-2012, 04:12 PM
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Quote:
Originally Posted by Delphinus View Post
Could be as simple as a grain of sand on the O-ring .. doesn't take much. Check for nicks or abrasions too. Worst case scenario, you can replace the O-ring. Home Depot, etc. carry various O-ring sizes but if you're really in a bind and can't find the right size, get one that's too big, cut it size and butt-end the cut ends together and glue together with superglue or frag glue. Should do the trick...
Lordco sells O-rings all sizes and cheap,also the O-ring may look ok as mentioned but for the cost replace it. Don't over tighten.
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Old 05-10-2012, 07:11 PM
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Thanks for the input guys. Im going out on a o-ring hunt this afternoon, i'll post the status soon
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Old 11-07-2012, 01:14 AM
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Lubricate the 'o' ring with K-y.(not kidding,I use this trick when I'm building Hemo Dialysis systems, non toxic and water soluable.)This should also be done when installing an ro membrane for a better brine seal.
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