At 05:50 PM 9/5/98 -0400, you wrote: >The question of how to estimate water infiltration is an interesting one. I >leave a boat in Key West over the summer. Last fall when I returned it was >most instructive. Both tanks are aluminum and have 200 gal. capacity. The >one that was half full with fuel had about 2 gallons of water in the bottom. >The one that was empty was dry. This summer, needless to say, I've left them >both full and expect no problems, but at the same time am very interested in >desiccant vent filters. [snip] >Anyone else have a better explanation? I have never run any tests, so I do not know for sure; but as long as we are guessing, I shall offer a guess also. It would seem to me that the fuel over the top of the water would serve as a vapor barrier, so that the water cannot evaporate once it condenses into the fuel. For an empty tank, whatever small amount condenses overnight would evaporate again during the day. It would seem that the fuel on top of the water would prevent that. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ :: Paul and Cindy Kruse :: KJV Joh 14:27 Peace I leave with you, 165 South Kenneth Court :: my peace I give unto you: Merritt Island, FL 32952 :: not as the world giveth, give I unto you. E-mail: plkruse@iu.net :: Let not your heart be troubled, 407-453-6206 :: neither let it be afraid. :: +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++