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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if you can empty the tank. then I pour a gal of rv antifreeze in mine . if you can,t empty? pour two gal in just to be safe. rv antifreeze is under two bucks a gal here. drive around the block to mix.
