I was installing a new p-trap under the kitchen sink:
Attached tailpiece to the sink no problem. Then I prepared a short piece of 1 1/2" ABS pipe, put a plumbing cement on it, inserted one end to the curvy end of the p-trap and the other end (also with cement on it) plugged in to ABS 1 1/2" adapter (the other end has threads and slip nut, it is put on drain pipe).
So all pieces fit each other well, and I put everything on, opened water to test for leaks for a couple of minutes. At that moment I realized that the cement has to cure long enough before water flows in! I shut it off, and left for 1-2 hours.
Now I'm wondering if all the cement I put on fittings is damaged and has no use. Should I redo my work once again, and give enough time to cure cement?
Thanks.
Best Answer
It's probably fine. ABS cement hardens in seconds -- probably in less than 20 seconds the joint would be locked up enough that it would not be easily moved by hand.
A joint won't be cured enough to withstand any meaningful amount of water pressure that fast -- a plumber would probably get an unhappy surprise if he cemented test plugs or fittings into place and immediately proceeded to fill a 20-30 foot tall column of water to test a new home's multi-story drain system.
In your case though the pressure would not have exceeded about 1 inch water column. If it didn't leak in your first test, go ahead and test it again. If it continues to not leak that's a good sign that it worked out well enough.