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.
How to Get Rid of the Excess Gas. If in case you want to get instant relief, you may want to find an area that is not too crowded, you may even go to the restroom if possible so that you can get rid of the gas that has been plaguing your system. You can be sure that you will get rapid relief because of this.