What is recommended for Connecting 1" Schedule 80 PVC threaded fittings to prevent leaks. I have tried pipe dope, but leaks developed between nipples and elbows. Do you have any suggestions.
Sealing threaded PVC pipe
pvc
Related Solutions
My solution was not ideal; it might have been less work just to dig out the section of pipe. With that in mind, I followed the suggestion of another site to use a mini hacksaw similar to this one to cut several notches in the body of the nipple (stopping short of the threads). Then I gently pounded in the larger size nipple extractor with a small mallet and twisted. The nipple broke in half, and from there it was a simple matter to pull out the two pieces with a pair of pliers.
It sounds like you're using a crappy copper pipe cutter. To cut PVC, you want one of these instead:
I've used mine to cut thousands of PVC pipes and it does the job quickly and easily. You can probably find one for less than $10 and it will serve you well for life.
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Best Answer
We use liquid sealant all the time with great success at 1-1/2" diameter and less.
Make sure you are coating the threads completely and evenly.
Some dopes require coating both male and female ends over certain sizes.
Maybe try a different brand.
Might just use teflon tape instead.
Plumber we know for a large local company uses teflon (to seal) and pipe dope (to lubricate) at the same time although we do not practice the same.
If these don't work, look at your threads and make sure they do not have a scratch or nick in them.