Fresh tank drain

I noticed after this last trip that my fresh tank had some water in it. Sounds like the check valve issue so I’ll try running the pump to see if that “fixes” it. I think it’s been that way for a while because I see spots on the inside that look like mold or mildew and there’s a faint water line around the bottom as well. Then I noticed that the drain outlet is far from the low point of the tanks. WTH sense does that make? I’ll need to disinfect, and flush, but it would be nice to be able simply drain it when there’s water in there. I don’t like the idea of running the pump to empty it because pumps don’t like sucking air. Any advice? How hard to add a drain at the low point, or would I be risking breaking it if on uneven terrain? Thanks in advance.

+1  We have done that ourselves and works quite well.  Another way would be to simply drive it around with the drain plug out as you make right and left hand turns most will naturally slosh out.  Not as good as the method OG gives but if you don't have a good sloping terrain to work with, a second choice.

Same here OG as we live by Torch Lake and when the glaciers carved there way through this spectacular land there is a lot of terrain that is quite severe.  Even on our 20 acres I can park the 177 and totally drain the FW tank because the slope is that steep.

Thanks for the feedback guys, especially about not adding a new drain!  I wonder if a rollover leveler would do the trick to get her tilted.  

I open the valve on the tank let it drain then drop the nose down as far as it will go, and use the pump to get out the rest