Donnier
Newbie
I have an old polyethylene 12 gallon seat tank. I usually fill it to about 11 gallons and after is sits for a while, the top of the seat where you sit, expands enough to lower the fuel in the site line by about a 1/2 gallon or so. The weight of sitting on it compresses the seat back to its normal configuration. Is the flexing of the top surface of the seat an issue? How much flexing can it take?
Don
Don