The antifreeze would not go into the line from the winterize switch to the fresh water tank. I don’t know if that line would self drain back to the fresh water tank when you drain that tank or not. But that is not a line you can blow out either.
Our winters are not as cold as many of you. But temps in the mid to low teens are not uncommon and we have never had a problem with that line.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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