Water conservation valve

A valve assembly comprising:

• a valve housing with a liquid entry chamber extending from an entry end and a liquid discharge chamber extending from a discharge end,
• said housing having a longitudinal axis and a liquid flow passage between said chambers which is offset from said longitudinal axis;
• a valve in said entry chamber having a stem which is slide-mounted in said housing along said longitudinal axis and extends into said discharge chamber, said valve having open and closed positions in which flow through said passage is open and closed, respectively;
• a cam follower on said stem;
• a shaft extending transversely through said housing and arranged to turn about a transverse axis which intersects said longitudinal axis and extends across said discharge chamber, said shaft having a handle external of said housing and extending below the level of said discharge end when said valve is in its closed position;
• a cam on said shaft engaged by said cam follower in said discharge chamber and adapted responsive to turning of the shaft to move said valve between said open and closed position;
• biasing means urging said valve into closed position;
• aerator means in said discharge chamber for directing air from outside said housing into the path of liquid discharging from said flow passage into said discharge chamber;
• and
• a diffuser mounted on said stem above said shaft and spaced from said aerator means, said diffuser being arranged to be engaged by liquid discharging from said flow passage to assist in mixing such liquid with air incoming through said aerator means.