Susan Biddle Ross is a character on Seinfeld, played by Heidi Swedberg. Susan, an executive at NBC, first appeared in the season 4 episode  The Pitch , in which Jerry Seinfeld and George Costanza pitched the idea for their sitcom to Susan and her fellow executives.
The best solution is to remove the tank and drain it. You can also try and siphon out as much as you can and put STP Gas treatment or any other alcohol based de icer in. It will take several cans of this plus fresh gasoline. If water has reached your fuel filter this will have to be replaced also.
If you need something that can help break down gas at the soonest possible time, lemon may be your best option. Lemon has citric acid which can be effective in getting rid of the gas that is causing problems with your abdomen and chest area. It can also effectively break down carbohydrates that can cause your body to pack extra pounds.