I for one, never had any luck with any of those "watr absorb" products ... unless you count bad luck and wasted $$

. Tried the special liquid additives, these stupid foam/spongy things on a stick that would only expand in presence of water, not fuel. Great idea ... ever try to chase a water bubble around in an 80 gallon tank, with baffles, through a +/- 3" hole??
As previously suggested, with siphoned off the top portions of gas and filtered the rest. We were lucky, the marina had a few huge clear fuel-suitable 30 gallon containers. Siphon into them, then siphon off the good fuel.
Using a fuel-safe pump putting the rest through a Racor filter did the trick. Time consuming, but worth it ... and for us cheap Yankees

, all fuel was salvaged to burn off another day

!

"Life's too short to own an ugly boat ..."