Tom and Doreen Posted February 1 Share Posted February 1 On our return trip home from Oliver we noticed standing water in the shower pan. The "auto drain" valve had been closed as was evident by the standing water not draining from the pan and the light in the closet was not blinking. How is it possible that water from the grey tank can pass through the valve in one direction and not the other? Once I opened the valve the water drained out of the shower pan as expected. I didn't see any evidence of water entering the pan from any other source. Could hydraulic pressure be forcing water through the valve as the water sloshes around in the grey tank while driving? Tom & Doreen • 2023 Elite ll • Hull #1321 • 2023 Tundra Platinum Crew Max • Cheshire CT Link to comment Share on other sites More sharing options...
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