Quote:
Originally Posted by mikedesj
I have a question. Is the winterizing port that you hook the hose to to place in the antifreeze battle supposed to have a heck valve in it. Mine does and the water pump would not overcome it to suck up the antifreeze. I ended up using in one of the cone shaped screen filters backwards so that it would push in on the check valve. Then everything worked fine. I am wondering if Keystone used a city water fill fitting that does have a check valve by error. Also, I did find that screen filter sitting in the bottom of my convenience station. Maybe it was supposed to have been in that port. My unit is a 2016 3711FL, not the 2005 3400RL shown in my pic. I need to update my pic.
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I had the same problem as Mikedesj. I tried the additional washer and it did not work. Finally took out the screen from the fresh water inlet port, reversed it and put it in the winterizing port. BINGO, it pumped just fine! Thanks for the tip.