test cap failure- pvc drain system

[markcool]

So I've got my DWV all assembled, I pumped up the balloon and filled it, and almost all of the test caps leaked.

I used the cheap thin little plastic caps that set inside of the pipe so that just the rim of the pipe is bonded to the cap.

I was a little suspicious when I glued them on, it seems like I'd need an absolutely perfect cut on the pipe to get these to effectively work.

I plan to get the caps that I can slip over the pipe and glue. I just wanted to see if anyone else had problems with these caps, or if I

used them in the wrong application, or installed them wrong.

Cheers,

Mark

 

[johnjh2o]

You are correct that the pipe must be cut straight. We used that type test cap all the time with no problems, but we also cut are PVC pipe with a chop saw.

John

 

[markcool]

Thanks.

You think I can glob some glue around the seal and try again? I might try it.

 

[johnjh2o]

Just putting more solvent around the outside of the joint won't prevent it from leaking. If you can't remove the test caps and re-cut the pipe square then go with your own solution of using what you call slip caps.

John