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Need help with water carrying pvc joint

Asked Dec 20, 2005, 08:07 AM — 5 Answers
Pvc pipe joint between floors has become unsealed so that it leaks minutely. So far anyway. Is there a product that will reseal this joint. Otherwise I will have to cut a large hole in the ceiling to remove and replace the old joint. It is a straight connection not an elbow if that makes any difference
Thanks
Butch

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5 Answers
Lotta's Avatar
Lotta Posts: 124, Reputation: 39
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#2

Dec 20, 2005, 08:12 AM
How much access room do you have to the joint?
Can you can access from the floor above?
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speedball1's Avatar
speedball1 Posts: 27,655, Reputation: 9541
Senior Plumbing Expert
  
#3

Dec 20, 2005, 10:40 AM


Hey Butch,

A PVC joint faild for only two reasons . The installer failed to prime the two surfaces or he failed to glue it properly. If PVC's glued properly it will run together and weld itself.
There is no magic fix to a PVC leak it has to be cut out and repaired one of two ways. Cut the coupling out and the pipe back far enough to prime and glue two couplings and a short piece of pipe or cut the coupling out close to the joints and connect the two ends together together without glue with a dresser,(compression)coupling. (See below) Sorry Butch but you're going to hafta open up that ceiling. Good luck. Tom
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labman's Avatar
labman Posts: 10,673, Reputation: 3050
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#4

Dec 20, 2005, 11:30 AM
Cutting into a drywall ceiling isn't that bad. Cut along the middle of the joists, and then across from one to the other at both ends. After the pipe is fixed, screw boards to the drywall running cross wise to the joists and centered on the edge. Screw the piece of drywall in on all 4 sides, tape and mud the joints and paint. Textured ceilings call for more skill to patch.
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jbeene47's Avatar
jbeene47 Posts: 2, Reputation: 1
New Member
  
#5

Dec 20, 2005, 05:39 PM
But why do it
I'm sure that patching drywall is a real grin but I really would rather fix the pipe joint IF POSSIBLE... Since it would be the easiest solution. Thanks for the helpful hint but please tell me whether or not the PVC joint can somehow be resealed.
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labman's Avatar
labman Posts: 10,673, Reputation: 3050
Über Member
  
#6

Dec 20, 2005, 05:52 PM
If Tom says that is how you have to do it, that is how you have to do it.

Somebody here suggested Using a flat you shaped board to patch a drywall crack. Draw the edges up into the you with screws. Then tape and mud without leaving a bulge. Maybe cut an 8'' square hole between the joists.
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