Black and grey tank not emptying completely
2007 Safari Simba Workhorse W22 Last few times I've tried to empty black and grey tank they do NOT empty completely. With black tank able to look down toilet and see fluid. Any suggestions. Thanks ...
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As level as possible. There is 2-3" of fluid in bottom of black tank. After I drive for the day and hook up again, it all drains. It's done this the last two times.
