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Hello ultralux88

You might want to bring that to a local
plastics company (like Laird in Denver).
They can identify the type of plastic it is
and the correct adhesive for a strong,
permanent fix.
I suggest this because not all glues for
plastics work on ALL plastics.
Especially ABS, which this may be.
 
Folks....solvent welding PVC and ABS will render the repair good as new. Providing that; you use a cleaner (you can buy clear cleaner, or the purple primer...chemically they are the same; primer shows, cleaner does not) on the PVC parts and clear glue (so as not to show). Clean the ABS parts and just use the ABS glue. It's not voodoo or mystery stuff when we put pipe and fittings together with glue solvents.


 


Back in the 70's when PVC became widespread & popular in plumbing, they had PVC DWV (drain, waste & vent) and pressure stamped PVC (for water) as separate piping. The Neanderthals in the trade soon figured out they could use the DWV PVC for pressure (cheaper). Eventually, they had to double stamp the pipe for DWV & pressure to keep everybody honest. The original PVC DWV piping was a little uneven inside if you ran you fingers over it.....drove the inspectors crazy and they also at that time mandated the use of purple primer on PVC joints (for the trades)....otherwise they had no idea if the joints had been cleaned or not.  


 


Kevin 
 
As inexpensive as central vac fittings are, I’d never recommend just gluing it back on. There’s some more to sonsider than just if it can be glued, and I’m sure the PVC cement I used to glue the new ones in would do it, but you have to consider what the surface inside the pipe will be like, when installed the right way, there should be no shoulders or lips in the plumbing, get the chunk glued on and not flush, or get a ridge of glue on the inside and you have a place for debris to catch and a potential clog. So yes, it could have been glued back and left, but in my eyes that is an unsatisfactory repair.
 

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