14. The combination with a siphon tube having an inlet and
outlet arranged to transfer liquid through the tube in a siphon action, an automatic priming device for the tube comprising a valve at the outlet end of the tube for regulating the liquid ?ow
through the tube, the valve being arranged so that the liquid
flow within the tube adjacent the tube outlet acts to close the
valve, and a liquid level sensing means adjacent the inlet
operatively coupled with said valve to move the valve toward a
closed position with the out flowing liquid from the tube being
used to snap-close said valve when the water reaches a
preselected lower level prior to the breaking of a siphon action
to trap a column of liquid in the tube above said tube outlet
and valve and open said valve to release the column when the
liquid rises to a predetermined level to prime the tube and
start the flow through the tube