It is easy to flush out the antifreeze. Just hook up to city connection, and turn it on, run all faucets, including shower control. Run the water until it is clear. There may be some antifreeze in the freshwater tank. Just remove 4 screws on panel beneath curb-side bed, lift up the panel, and see the tank drain. I cut this panel in half, and used a piano hinge to make this area more easily accessible. I also installed a small shelf just above all the plumbing connections and pipes for more storage. This area is now useful space.
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