Why Can T You Use Pex For Tub Spout Drop

I m certain they do not want you to use pex from the drop ear to the tub spot but you could probably use it between the faucet and drop ear.

Why can t you use pex for tub spout drop.

With a built in diverter you could use a pex drop eared ninety degree female adapter and a nipple but that is more trouble than it is worth. Use a drop ear bend support to hold the tubing in a tight bend right. Why can t you use pex for a tub spout. 2 reasons i learned.

Also a lot of tub spouts have installation methods that only work with copper stub outs. Copper is the only professional installation material. You can connect a compression type shutoff valve to the one half inch copper stub out and then connect your fixture. Long story short it is unacceptable.

Copper would help give more support to the drop ear fitting and tub spout which is probably why they recommend it. If you use pex for the tub spout when you turn on the water to the tub water will back up through the shower head due to the reduced inner diameter of the pex it s called stacking. In areas that are concealed like under a kitchen sink or vanity cabinet you can eliminate a joint by running pex supply directly to the shutoff valve. How did this project turn out.