45+ Plumbing A Tub Shower With Pex. Learn the trick to fast plumbing in your home. The only issue with pex on a tub/shower valve that i am aware of is the restrictive flow into the spout just as you described.
Once this is done you're finished with the shower valve. Most fixtures, like a sink or shower, is 1 point. Finally, you can replace a run of piping with pex which essentially means that when you find a leak, you replace an entire section of piping, not just the plumbing a shower tub.
Pex for the tub flow since it affects the shower feed.
These units do require some assembly, but most. I have a 3400 square ft 2 family home that wasn't winterized properly and now the client wants us to tie into the existing copper pipe that is still there with pex. Get expert advice and shop plumbing replacement and repair parts. The only issue with pex on a tub/shower valve that i am aware of is the restrictive flow into the spout just as you described.