Winterizing the water intake valve
I bought a used 2017 5th wheel last October. Apparently, it was not winterized correctly, since the pipe leaked when I tried to add water to the water tank when the blue valve was in the “fill tank” horizontal position. This year, according to the instructions, it said to put antifreeze into the system using a manual pump with the blue valve in the “city water” vertical position. Everything worked OK, with antifreeze coming out of all faucets. My question is, what is to protect the “fill tank” water lines and the water pump, if I don’t put antifreeze in those lines, just like I would put water in the tanks in the summer?