Divers Stuff have a number of High-flow waterlift dredge systems available for hire with a selection of pumps of variable flow. Contact us for Prices, availability and details. These lightweight portable systems operate on a similar basis to air lifts, but the high flow water pumps have a much smaller footprint than an air compressor that would be required to power an airlift of a similar power output. Additionally, as a waterlift does not rely on the expansion of air to operate, these venturi systems can be used in very shallow water with great results. The weights and dimensions given below are for the pump units only whilst primed for use. They do not allow for soundproofing boxes that the units can be supplied with to further reduce noise output whilst operating on a small deck.