Mix one cup of bleach to four gallons of water for a 40 gallon tank, one and a half cups of bleach to six gallons of water for a 60 gallon tank, and two cups of bleach to eight gallons of water for a 100 gallon tank. Add the bleach solution to your tank, then fill it up all the way with fresh water.
Drive around the block a few times. Run solution thru your coach as in winterizing. Drain the system and fill the tank with fresh water, flush the piping system and your done.
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