I took my new 2019 Rockwood Minilite 2506s TT on it’s first camping trip. I hooked the city water up, checked everything (hot and cold water on all faucets) and went to sleep. The next morning I woke up to hear water running outside. Water was running out my fresh water fill.
After hours of troubleshooting and replacing the water pump, we figured out it was this simple lever in the shower.
This “Showermiser” lever when enabled will recycle water to the fresh water holding tank, and then when the water is hot, turns color to indicate time to flip back so when dry camping you aren’t wasting water down the drain while waiting for it to heat up.
Apparently it doesn’t care if the water source is city water, it still sends the water to the fill. Maybe this is an alternative way to fill your fresh water holding tank, but beware, there is no warning if it gets bumped or moved by mistake. Your tank will fill and keep flowing.