Anybody have any idea on what I might expect to pay to have someone come out and clean my fuel tank. I will pump out the fuel into jerry cans [the H31 only holds 18 gal], filter it, and add biocide. I would like to have a clean tank to work with. I read other posts that suggest a variety of solvents to clean the tank, and I would have to invest in a pressure washer [which, like the purchase of any tool, will pay dividends in the future]. It sounds like a messy job that I would avoid depending on what the pros charge.