Solvent Weld PVC Question

[DRJZ1974]

I need to replace a section of PVC pipe, but both ends of pipe are fixed. I am planning on using a piece of new pipe and a PVC coupler on each end. The problem is, I know I need to twist the pipe 90 degrees when putting together, but even if I move quickly after attaching the coupler and pushing in all the way, it will be very difficult to turn when trying to attach the pipe to the other end of the coupler. Hope this makes sense? Is there as easier way to do this, or is this the best way?

Thanks

 

[DRJZ1974]

Also, not to mention, it will be difficult to fully insert the pipe into the couplers. Does it need to be inserted all the way? What would happen if it was only inserted 75% of the way?

 

[larry4406]

The couplings you are likely using have an internal lip for the pipe to bottom out. These are for new work. Find the ones that don't have this lip (called a slip coupling) or take your dremel tool and carefully grind it off and make your own.

Then you can slip the coupling on the new pipe section which is cut tight to length, align new with old, and slide coupling over. Apply glue before sliding over, rotate the coupling 90 degrees.

 

[rsanter]

you need what is called an expansion repair coupling
they can be found at home depot or lowes as well as plumbing supply places

http://www.sprinklermart.com/PVC_Quick_Fix_Telescopic_Repair_Coupling_s/195.htm

bob

 

[DRJZ1974]

Ok, I think I have it figured out, just worried about trying to twist the pipe connected on both ends. Can be hard enough to turn with just one end wet.

 

[nate379]

Why do you need to twist it 90*?

 

[larry4406]

Why do you need to twist it 90*?

simple rotation to smear the glue properly.

 

[charlie_nj]

I've made many PVC joints where it was not possible to turn the pipe 90 degrees after glueing. Most recently was last summer when I was plumbing the pool I built. I always just use extra glue, push them together and hold for a minute or so. Have not had one leak, and I tested the pool plumbing to 30 psi.

 

[nate379]

First time I've heard of this twisting thing.

All I do is put glue in the coupler, glue in on the pipe, push together, hold for a couple seconds and that's it.

 

[larry4406]

First time I've heard of this twisting thing.

All I do is put glue in the coupler, glue in on the pipe, push together, hold for a couple seconds and that's it.

Well then, now we know who reads directions

 

[BlindViper]

Well then, now we know who reads directions

What are you talking about? Those aren't directions, there are no pictures!!

 

[DRJZ1974]

Hahaha, Thanks for the help, sounds like I might be able to get away with not twisting if I need to.

 

[Kevin54]

they twist it on TV so everyone has to twist it. Actually I think the twisting is just to give it a little bit of teeth to bite when the glue starts to soften the PVC, and to make sure the glue is all the way around. Properly cleaned and primed, you could more than likely get by without twisting.
Is the application going to have water going through it or is wire or something else going through it. And for the love of Pete, don't say air.

 

[back2class]

I have always twisted but on repairs often that is not possible. Don't worry, I never had one leak and I have done it dozens of times.

 

[nate379]

Eh, who needs those darn things!

Well then, now we know who reads directions

 

[brokenknee]

The reason for twisting the connection is to ensure complete coverage of the glue. Since it is not always possible to do it, just make sure you thoroughly coat both pieces and hold for thirty seconds to make sure the pipe does not push apart. I have done this many times and not had a problem.