Abstract: A waste water control method and means comprising three basic units, a first unit including a flush booth wherein a radiator, or the like, may be exteriorly sprayed and/or interiorly flushed in the usual manner, and a multi-compartmented sump arranged for receiving the fluid draining from the spraying and/or flushing operation; a second unit including a first settling compartment wherein the fluid from the sump is received for a separation of heavy particles or components of the fluid from lighter components thereof, the lighter components of the fluid being directed to a first holding compartment for a chemical bath treatment thereof to substantially eliminate undesirable organic matter from the fluid; and a third unit including a second settling compartment for receiving the fluid from the first holding compartment to provide a final separation of heavier components of the fluid from the lighter components thereof, and a second holding compartment in communication with the second settling compartment for re