The connection and hose you have to suck antifreeze through your water system bypasses the water tank when you are putting antifreeze into your water lines. You can experiment and you will find that with a different valve setting that hose will direct its flow to your tank instead. I have a Water Works Utility Panel in my Sportscoach and I can do that procedure with it. I recently bought a 30 gallon water bladder from Amazon that I can put in the back of my Samurai and get water from a campground community water spigot. Saves having to move the RV after it is setup.
Jim
