A floating tube would present the problem that air might get sent into the engine, the results are described in the article. Hence the intake is at the lowest p

A floating tube would present the problem that air might get sent into the engine, the results are described in the article. Hence the intake is at the lowest part of the engine, the only floaty is the measurement device to see how full your tank is. That floaty can have a sliding system to make it adjustable to different tank sizes, if set slightly different then it may cause early or late fuel low warning. When reading the sentence about debris at the bottom my face went into an unnatural position.