Good flexible PVC

Sch40 pipe and Sch80 pipe have the same OD, so the fittings are interchangeable.

Of course, that means the ID of Sch80 is smaller than Sch40, so Sch80 pipe will flow less.
 
<a href=showthread.php?s=&postid=14817460#post14817460 target=_blank>Originally posted</a> by dean1977
Can you PVC glue the spa flex into fittings?

If you are ordering it, order cement specially formulated for flex PVC. It remains slightly flexible after it dries. Standard cement bonds can sometimes break because standard cement dries rigid.

This is more of an issue in outside plumbing installations.
 
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