Since you're on a lake in Tennessee it sounds like a money
and convenience issue rather than a safety
issue. By this I mean you'll not be breaking an inlet with strong current
near the rocks, but just don't want to be delayed with a task out in the lake.
So, with this in mind, the choice is to pay for fuel polishing and tank cleaning
; build and install your own plan as Uncle Bob suggested; or be a stingy DIY person like me who doesn't spend much money
I'd sail out on a breezy day and take as many wakes from the ski boats as I can. After a lot of tacking and gybing I'd sail near my slip before starting the engine
. In the slip I would stick a fuel hose down to the bottom of my tank. I would not access the fuel from the regular pick-up tube because it likely does not reach the actual tank bottom. With one of those squeeze bulbs from a remote outboard motor
tank, I would pump out a generous sample of my fuel.
If you're lucky the fuel would be clean. If not, pump it all out flush and repeat.