Unless a person has the coach tilted toward the drain, and gives it enough time for everything to drain out, you are going to get a little when you take the cap off after traveling. I like to keep the drains open for a few minutes after I think they are empty to give a chance for everything to drain.
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Roger & Cheryl Full Time since 2002, RVing since 1975 2008 Chevy 3500 Crew Cab Dually, 2012 RW 36RL
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