2109s Air in the Line - Solved
Rockwood solved the air leak. It was a small 1/4 inch cut in the water line which would pass a pressure test and sometimes fail but was never consistent.
They replaced the water mizer, water pump, insulation, and more fittings over a five hour time period. It would only leak water under the shower when I had the water mizer on.
2021 Rockwood Mini Lite 2109S
2010 Toyota Tundra 4WD