Abstract: Apparatus for recovery and reuse of parts cleaning fluid or similar fluid such as oil upon separation and removal from water, including a tank for receiving and collecting the water and fluid which floats atop the water. A removable shelf may be slidably mounted in the upper part of the tank for directing the fluid flow to the rear of the tank for channeled passage to a sludge collector. A box-like housing having a water discharge chamber partitioned by a plate-like baffle into water entry and outlet compartments which open to the upper part of the chamber that is vented to atmospheric pressure may be mounted in the lower part of the tank by associated fluid drain fittings. The outlet compartment has a drain whereas the water entry compartment has a relatively small inlet closely adjacent the bottom of the tank so that only water will flow into the water discharge chamber for automatic discharge from the tank upon the level thereof exceeding the height of the baffle.