Not that fracker guy. Just my opinion after 30 plus years of Wholesale and Retail gasoline sales. My current C-store in Missouri that has mandatory ethanol blending,has shown that water will not stay in the tanks. I also have 10micron fuel filters that would plug immediatly if trapping any water. This is a higher volume store so that phase seperation is not an issue. However, my research indicates that all ethanol blended fuel will be phase seperating in 90 days irregardless of any aftermarket additives. So if you have had it that long, get rid of it.