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Tool Talk Discussion Forum

Unglue PVC 20 joint

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Earl-IL

11-04-2005 07:34:29




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I have pvc # 20 That is glued can I heat it with a heat gun and unglue it?? It is in a place where i can't cut it off and replace very easy. Thanks. Earl




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Chris(WA)

11-04-2005 17:50:40




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 Re: Unglue PVC 20 joint in reply to Earl-IL, 11-04-2005 07:34:29  
Saw a neat little tool when I was at the plumbing supply house the other day. It is a drill bit/holesaw that goes into the end of a broken glued fitting and cuts it out to the size to accept a new piece of pipe. Kind of like drilling out a siezed bolt and then retapping but for plastic pipe. Did not buy one on the principle that whatever size I bought would have been the wrong one for the next time I needed it. But I will remember they exist for the next time I do need one! Looked like a good tool for the jobs where you just have to save the fitting!

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Dusty

11-04-2005 16:52:13




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 Re: Unglue PVC 20 joint in reply to Earl-IL, 11-04-2005 07:34:29  
When using sch 40 I have on ocassion had a need to save a special PVC fitting with a female end. I cut the pipe off very close to the fitting. Then take a hack saw plade and cut 2 slots in the pipe inside the fitting, close togeather. You then you can use a screw driver and peal the pipe out of the socket.

Dusty



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Charles (in GA)

11-04-2005 13:00:03




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 Re: Unglue PVC 20 joint in reply to Earl-IL, 11-04-2005 07:34:29  
Technically, gluing PVC is called "solvent welding" and for a reason. The two parts both melt and the resin from each intermixes and "welds" together. If properly glued, its impossible to separate, cut it.

If you don't have enough pipe to glue a new fitting to after you cut it, there are special fittings (but generally for schedule 40, not the flimbsy 20) that glue inside the pipe.

Link

No matter how difficult, you probably should consider removing the thinwall #20 pipe and replacing it with more standard sch 40.

Charles

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Gene Davis (Ga.)

11-04-2005 10:52:15




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 Re: Unglue PVC 20 joint in reply to Earl-IL, 11-04-2005 07:34:29  
Not if the joint was glued properly. PVC joints done right melt all together and become as one.



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Jay (ND)

11-04-2005 08:01:27




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 Re: Unglue PVC 20 joint in reply to Earl-IL, 11-04-2005 07:34:29  
Sorry - your pvc is fused together - cut and start over.



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Jay (ND)

11-04-2005 08:01:14




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 Re: Unglue PVC 20 joint in reply to Earl-IL, 11-04-2005 07:34:29  
Sorry - you pvc is fused together - cut and start over.



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