I have some bulk tanks with a couple hundred gal. of gas from last fall. Used it the first time last weak and it has water in it, mower ran like crap till I drained the tank and put fresh in it. I changed the filter on the bulk tank and added 20 bottles of heet, it suppose to suck up the water or something and added a couple cans of octain booster. Well it still has some water in it any suggestions? Hate to dump all that gas at todays prices.