Why No Pex For Tub Spout Drop

So it s fine to have 1 2 pex going to the shower head.

Why no pex for tub spout drop.

There is no stacking issue with the. Pax has a smaller inside diameter than copper when you will turn on the spout your showerhead will also be dripping if you read the manufacture instructions it will say do not use pex for spout level 2. Long story short it is unacceptable. Shark bite copper shark bite 90 iron pipe pex everywhere else.

Any restrictions cause the water to gently back up as it waits its turn to exit the tub spout. Valve to tub spout tube is. The interior diameter of pex is actually a fraction smaller than copper this forces water to come out of the shower at the same time as the tub spout. There is no way to secure pex adequately to keep a tub spout from flopping around.

2nd reason pex is flexible and the spout relies on the pipe for support. The tub spout can be copper brass or galvanized pipe. If the valve has a built in diverter three handle valve this would not be an issue. Valve drop to spout tube is within the 6 11 inch tolerance.

Pex when you pull up on the diverter the entire spout moves. You cannot use pex because the pipe coming out of the valve needs to be able to support the weight of the tub spout and handle the abuse of pulling pushing down of the divirter built into the spout. You need an unrestricted flow out through the tub spout.