I purchased a replacement filter element for my fuel filter/water separator.  My question is what is the proper method for replacement?   I don't want to spill gasoline into my bildge.  I have checked the plastic bowl and don't see any liquid, however when I opened the check valve I felt some gas come out of it.
I have a Racor 320-RAC-01 filter (replacement element is S3228 UL).   Clear plastic bowl at bottom. 
I searched the internet for instructions, but cannot find them.
http://mastercatalog04.westmarine.co...ckProdId=72589
Thanks,
Jim
got fish?