Abstract: A centrifugal pump for producing a vacuum, the pump recirculating fluid through a vacuum chamber into which a vacuum line opens, the flow of water across the chamber carrying air or gas therewith to produce the required vacuum.
Abstract: A water distillation system in which the heat supplied to the evaporator and the cooling of the condenser is provided by a refrigeration unit having its condensing coils in the evaporator and its evaporative coils in the condenser.