New joints will not hold cement bond

Old 01-30-11, 03:40 PM
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New joints will not hold cement bond

I had to replace a T joint due to cracking. 2 of the 3 joints on the T refuse to bond to the exisiting PVC pipe. All joints purple primed and glued using pvc cement. This was a PITA job to get the T to fit.. any advice on what I can use around the joints to ensure no leaks? epoxy? more cement? anything?

Old 01-30-11, 04:12 PM
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I am just guessing

Many years ago a master plumber told me when a solder joint won't take (even he had a few), cut the pipe back and couple in a new section. I don't know if this would apply to PVC, but just a thought.
Old 01-30-11, 05:59 PM
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I wouldn't use epoxy or anything else. It may work, but may also fail. PVC cement is the way to go.

Are you sure you're using the correct PVC cement (and not ABS or some other plastic cement)? I'd also try sanding down the pipe a bit to ensure there isn't paint or something preventing the cement from bonding. Also, are you sure the ambient temperature is within the specified range for the cement?

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