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Tony Hwang

wrote:
Hi everyone,

I redid some plumbing in my basement and it went well except for one
thing:

I can NOT get one area to stop dripping. It's a spot in a hot water
line to the shower where I joined 1/2 inch
CPVC to 1/2 inch copper. I used a male, threaded CPVC fitting into a
female, threaded copper fitting.
I used pipe dope and tightened it as much as I could. Any more tight
and it probably would break.

I have redone this fitting three times and it just won't seal, always
drips. As I said, I used pipe dope one time.
One time I used teflon tape. I was told that both of these are ok to
use in this situation.

Now, oddly enough, when I take a shower and the pipe gets good and
hot, it stops dripping.
When it cools, it starts again as if the expansion was sealing it.

I'm out of ideas.

Help?

Thanks

Hi,
Why not use tape?