Blue water in black tank - does it freeze?
We bought our camper in the spring and have not put water in it at all. The black water tank has some blue water in it from the previous owner. It's cold now. Does that blue water have any anti-fre...
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Blue water makes me think its got whatever the base water quantity plus the standard Tank stink solution (which is generally blue) in it. If the tank is predominately, empty, it won't cause damage, but it will freeze.
