You could also try flipping the gasket around, meaning take it off the bulkhead and turn it upside down and reinstall. Sometimes that works. sometimes you need a new gasket. I have several extra bulkhead gaskets. I always save them. I can get you a replacement gasket if you are willing to come pick it up, asssuming your bulkhead is 3/4" or 1" in size.
I'm just off exit 6 (Northridge Rd.) off 400 south from you.
You could always buy a new bulkhead from one of our Sponsors and that would solve your problem.
Dave