Winterizing Issue

seekingsummits wrote:
Ive had this TT for 5 yrs and have never had any issues winterizing. Usually i use 2-3 gal of antifreeze and im good to go. This time I bypassed the water heater like normal and diverted the pump toward the hose for the antifreeze. No issues with suction, but after 4 gal being sucked up I was really scratching my head. Normally by 1/2gal the lines are pressurized and the pump turns off. This time I put 4 full gal in and it was still going. Only thing i could figure was to swap the valve on the outside from “city water” to “fresh tank”. Once i did that everything went fine. Im assuming i was sucking antifreeze into the FW tank, I guess my question is do you always need to have the valve to fresh water tank vs city water? I find it hard to believe that the last 4 yrs i always got lucky and the valve was already switched to fresh water, esp since Im almost always on fulll hookups. Just seemed odd this yr

You didn't say what brand of rv you have but I have a Jayco and yes my tank fill-city water valve has to be in the tank fill position. Other wise in city water position it will put it in the fresh water tank. I just did the same as you winterizing mine yesterday. Forgot to turn the valve to tank fill. Sound backwards but that the way mine works.