2109s - Question about water lines to freshwater tank
I'm getting ready to de-winterize and sanitize and was looking at the fresh water tank and I see I have 3 lines to the tank plus the drain line on the bottom. I never noticed the 3rd line near the top before.
One is the large corrugated freshwater fill, then there is the 1/2" line on the side toward the bottom of the tank which must go to the pump suction side to supply the camper. But what is the 3rd 1/2" line that enters the tank near the top? I was trying to trace the lines in the pass-through storage, but they go up inside under the bed nightstand area where I can't see them.
I was thinking it may be some way to fill the tank while using the city water hookup since it's near the top of the tank, but I don't see any valves for that. The only valve I have anywhere around the pump and water lines is on the suction side of the pump which is for the antifreeze inlet I think.
2017 Rockwood 2109S
Me Her And a furry little dog
US Navy Veteran