It is designed that way. When you are using water from the freshwater tank it is recirculated back to the freshwater tank so that you don’t waste it. Some have put an in-line shutoff on the hose and others have installed a better handheld shower wand with built in shut off which was our solution.
This keeps the recirculating valve functional if ever needed.
TT: Flagstaff 25FBLS
Previous TT: Jayco, Rockwood and Flagstaff
TV: 2017 F-150 SCREW, 3.5L Ecoboost, 10 speed, 3.55, 7000# GVWR, tow package.