Quote:
Originally Posted by hankaye
meyerske, Howdy;
When I lived in Central Utah (very cold in Winter), I was able to
get access to the gray tanks inbound plumbing and I would
'deposit' about a Big Gulp cup (32 oz.), worth of Ice Melt into the
tank after each dump. I'd put 3 or 4 gal. of water in behind it and
never had a problem.
I'd do the same for the black tank as well, just for insurance.
Just something for you to consider.
hankaye
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Interesting idea. What about dumping a gallon of RV antifreeze down the kitchen sink drain after a grey tank dump?