Intermittent water-supply system

Apparatus for intermittently supplying a predetermined quantity of water at regular, predetermined intervals comprising:

• (a) a water tank for accumulating and storing water including an air vent in the top of said tank and an outlet in the bottom of said tank, said outlet comprising outlet valve means slidably mounted on a guide rod such that said outlet may be alternatively opened and sealed;
• (b) water feeding means and inlet valve means for filling said water tank at a constant, predetermined rate of flow;
• (c) float-actuated valve means within said water tank comprising a stem slidably mounted in a substantially vertical position within said water tank and drilled with a plurality of pin holes at varying heights so as to accommodate a readily-removable insert pin, said stem being threadably formed on its lower end so as to engage said outlet valve means, and a hollow float having a vertical hole partitioned from said hollow portion slidably mounted through said hole on said stem;
• (d) a down pipe connected to said water tank outlet and terminating in a tapered tube;
• (e) a siphon tube comprising an inlet stem inside said water tank terminating in an open end just above the bottom of said tank and an outlet stem outside said water tank terminating in a tapered tube which extends together with the tapered tube of said down pipe into a venturi outlet, wherein the U-shaped portion of said siphon tube passes over the top of the wall of said water tank;
• and,
• (f) an ejector tube extending downwardly from said venturi outlet.