Plumbing for two showers

[Mike Castagnetto]

I have two showers that are back to back (the end with the control valves share the same wall). While I don't anticipate two people taking a shower at the same time very often, what is the best way to maintain reasonable water pressure in the event that two people are taking a shower at the same time. I am using pex and have 3/4" lines running up to the shower valve before reducing them to 1/2". Should I use a manifold? Thanks

 

[Jeff Handy]

Why would you reduce to 1/2?

You can get shower valves that accept 3/4 inch.

Especially if there are multiple sprays in either shower, or rain shower heads, etc, you will want that high flow.

Either way, even if you reduce to 1/2 inch, you can run separate supplies for each shower.

 

[Rossando]

That’s alright to do. You want to reduce it to maintain even pressure if both showers are used. Take some pictures so we see what your working on/ setup.

 

[Diehard]

The built in pressure reduction for the individual shower heads would likely be more of a pressure/flow reduction than individual 1/2" lines.

So assuming you have sufficient pressure in your system, it shouldn't matter.

 

[callaghanpump]

The best solution to this problem is to run separate supplies for each shower. https://www.callaghanpump.com/