Can polybutylene fittings be replaced with pvc fittings. If so what type of pvc fittings can be used? Cpvc, schedule 40/80 etc ?

Dale, if this is for domestic (drinking) water.. then can replace with cpvc pipe/fittings. Check out this website:

www.flowguardgold .com Let us know what you think.

If you are willing to purchase some special tools, then can also use the latest craze... PEX pipe and fittings... type that in at Google and see what pops up.

Let me know if you need more info. Good day... MARK