Abstract: An inline filter having a swivel right-angle fitting for coupling an inlet or outlet tube. The fitting includes a stem having a pair of O-rings and a distal ridge and notch. The cap of the filter includes a port having a plurality of annular, resilient tabs that engage the notch and ridge to retain the fitting to the cap.

Abstract: An eyeball assembly for use in an eyeball fitting. The eyeball assembly includes a passage for allowing water flow therethrough, and the passage is adapted to accept an insert for adjusting the discharge orifice of the eyeball or governing the direction of discharge therefrom. Various inserts are adapted for placement within the eyeball passage. The eyeball passage is configured so as to provide an area of minimum transverse dimension, and the inserts are configured so as to provide an end which has a transverse dimension slightly greater than the minimum eyeball passage dimension. The inserts are adapted to be engaged within the eyeball passage by means of a push-on force substantially parallel to the longitudinal axis of the eyeball passage, causing the inserts to "snap" within the eyeball passage to provide a secure engagement therebetween. The inserts are difficult to remove by manual force, but, with the aid of a tool, can be removed from the eyeball for replacement or interchangeability.

Abstract: A circuit for sensing and controlling the level of fluid within a reservoir includes a pump for controlling the level of fluid. The circuit further includes two sub-circuits each including a probe adapted to contact the fluid. Each sub-circuit further includes an SCR and an oppositely poled diode. Also included is a relay coupled to the sub-circuits for operating the pump. The relay is designed to energize the pump only upon submersion of both of the probes. The circuit is coupled to an AC transformer having, in one embodiment, an off-set center tap such that upon submersion of the first probe the first sub-circuit conducts a first magnitude of energy that is insufficient to pull in the relay but is sufficient to hold in the relay once it is actuated. In an alternative embodiment, the transformer includes first and second resistors coupled between the relay and the first and second sub-circuits, respectively.