I am creating a shower spa that will have a hand held, rain head and 4 body sprays. I know I need a balancing loop, but my question is I am running 3/4" line as supply but the divrter delta r11000 and mixer only have 1/2" connections. Do I create my loop with 1/2" OR 3/4"? Also my house is all done in Pex should I make my loop from pex or copper?
Thanks
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