[jbeene47]

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

[Lotta]

How much access room do you have to the joint?
Can you can access from the floor above?

[speedball1]

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

[labman]

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.

[jbeene47]

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 the PVC joint can somehow be resealed.

[labman]

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