Our alcove-type shower will have a fixed shower head and a handheld on the right wall, and controls on the left wall. The valves used are a Grohe universal rough-in (35 026) with a thermostatic control (19 865) and two separate volume controls (rough-in is 29 273 and trim is 19 182) for the handheld and fixed shower head so that they can be used separately or at the same time.

Because of the tight space and the lack of detailed instructions supplied by the manufacturer, installation wasn't easy. Will the valve installation shown with 1/2" Pex and 3/8" elbows work properly?

Thanks

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