84Dolphin Posted October 7, 2021 Share Posted October 7, 2021 AfterI empty my gray and black tanks at the pull valves, i can look into the toilet and see there is still an inch or two of water at the bottom of the tank. Is this normal? If not, how does one go about emptying it completely? Quote Link to comment Share on other sites More sharing options...
Ctgriffi Posted October 7, 2021 Share Posted October 7, 2021 I don't really worry about getting every drop out—just drain as much as you can, then chug a bunch of antifreeze into the john Quote Link to comment Share on other sites More sharing options...
WME Posted October 7, 2021 Share Posted October 7, 2021 Find the drain in the tank and drive the rear wheels up on a couple of 2x4 to tilt the tank. If that can't be then with the drain hose hooked, run a water hose in side and flush out the black so the water left in the tank is clean. Quote Link to comment Share on other sites More sharing options...
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