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Originally Posted by dcrogers
Another thought - instead of salt, how about adding some automotive antifreeze to the grey water tank?
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It is illegal to dump automotive antifreeze down a drain in many municipalities. It mucks up the sewage treatment plant somehow. I can imagine that in a campground with its own treatment plant, you would be even less popular. As you noted, there are environmental concerns.
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The TM manual says (winterizing) ; "Antifreeze may be added to the sink and tub drains to keep the drains in working condition ..."
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I'm pretty sure they meant non-toxic RV antifreeze.
Bill
Hybrid Mode
