It is a 50/50 chance that the shower fixture is installed "Upside Down" in your RV! The shower hose Outlet should be on the Down/Bottom side! Then your Knobs/Handles will turn the correct way! BUT the most Important part is when you "WINTERIZE" and remove the shower hose the WATER in the Fixture can Drain out the BOTTOM! With the newer RV units adding the "Shower Mizer" additional thought must go into Winterization!