Product near the top of a fuel storage tank is less likely to contain solid particles or water, so a floating suction will draw cleaner product from near the surface.
Floating suctions are furnished with swivel joints, one or more arms, and a float. They are available in various configurations for a wide range of sizes, products and tank types.
The picture shows a 3” floating suction with two arms, one of several we recently supplied for use in above ground Jet Fuel storage tanks.