Patent ID: 7967498

Claim:
A liquid recirculation and transfer system capable of transferring liquid against a small head comprising: an equipment holding vessel for containing liquid having an enclosed bottom, an open top, at least one side wall connected to said bottom, the sidewall having a discharge port positioned adjacent said bottom for transferring liquid out of the holding vessel and an intake port positioned adjacent the open top; a high volume, low pressure liquid transfer assembly comprising a rotor type stirrer having a stirring blade connected to a first end of a shaft and mounted within the equipment holding vessel such that a second end of the shaft is above the top of the vessel; a submersible housing surrounding said stirring blade and defining a liquid transfer zone, the shaft of the stirrer traversing the housing through a shaft opening in the housing, the stirrer freely rotatable within the housing, the housing positioned within the holding vessel such that the housing is at least partially submersed in liquid when the holding vessel is charged, the housing having a liquid intake for drawing liquid into the housing and a liquid discharge tangential to the housing and aligned with said discharge port for pumping liquid out of the housing; and a drive mounted adjacent the top of the holding vessel engaged with the second end of the shaft of the stirrer such that said drive is capable of rotating the stirrer.