Profile: Hydro Systems, Inc. produces boat lifts. Our Poly lift® can be used in floating docks, piers, and can be offset to one side in wide slip and back-in under power. Our polyethylene pipe material is used for lift flotation and provides extra buoyancy when tank is submerged, which minimizes downward load pressure on docks. Our extra heavy duty frame is manufactured with structural steel and then hot dipped galvanized.