I've had no issues at all w/ my Girard. I just put a good Watts pressure regulator on the line (doesn't restrict the flow), removed the regulator from the shower head, and away we go.
__________________ 2023 Ford F-150 XLT SCREW 3.5EB (Max Tow Pkg., Black Appearance Pkg., Bed Utility Pkg.)
1727 Payload / 4150 RAWR