An hydraulic proportioning system having a fluid actuated motor with a
driven motor shaft, the motor being in fluid communication with and
powered by a fluid source. A pump is provided having a drive shaft driven
by the driven motor shaft of the fluid actuated motor, and a drive clutch
interconnecting the driven motor shaft and the drive shaft of the pump.
An injector manifold is in fluid communication with the pump which is
connectable to a chemical source. A tube is in fluid communication with
the injector manifold and extends into a chamber having fluid
communication with the fluid source, the chemical and fluid from the
fluid source combining in the chamber and discharged therefrom.