I capped a drain with a push on fitting that I picked up a the plumbing supply store based on recommendations here and elsewhere. I’ve pushed it in as far as it will go, but it still spins on the copper pipe, but definitely won’t pull off.. Is the spinning normal?? Should I have heard a click or anything like that?

Thanks

I added a photo it appears to be fully engaged. Since it is an old dishwasher drain and there is no water in that pipe normally, I won't know if I have a problem until I have a backup of some kind, so I want to be sure it's all the way on before I cover it up.





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Spinning is normal, not an issue. You should be fine. There will be no clicks when you push on a Sharkbite.

I see a threaded fitting on the right side. If you are going to cover this pipe up and want a real permanent cap, you might be able to cap it at the threaded fitting.

Thanks, George.

This has been in my wall for a long time, so I wanted to disturb it as little as possible. My thought was that unthreading the connection that was there would create a risk that that fitting would be damaged and I wouldn't be able to attach the replacement without creating more trouble for myself. It is in a difficult to reach location, so I didn't want to create new problems while trying to correct old.

We cannot tell if it is all the way on because we did not see you install it.

judging by you first picture, if you didn't cut any copper then the fitting is seated all the way..

I did cut a little so the cap wouldn’t stick out, but I was able to remove the threaded fitting and look inside to confirm the push on is seated all the way. The total length is a little under an inch and it was on just shy of that because the pipe is up against the end of the cap.

Thanks