The Float Dock strainer can save the day in many firefighting situations. Float Dock lets you use the water in streams or ponds, both deep and shallow, and with a Fol-Da-Tank. Because it operates below debris and scum and above muck and sand, it screens out materials that wear out impellers, packing and bearings. Since Float Dock strainers are self-leveling, there are no whirlpools or suction loss.