Originally Posted by wilard
If your referring to pex between valve and diverter
The pex is narrower and creates a restriction sending the water up to the shower head
Neal I believe he is saying that the pex going to the tub spout is to small and causes some water flow at the shower head when the diverter is open.
I have had problems with that happening. Not because of pex, but maybe because of restrictions at spout due to hard water build up. Never considered the spout issue. I figured it was at my valve.