There is also provided a stake or spike 47 which is secured
to the tube and driven into the ditch bank B to support the
entire assembly in an upright manner on the ditch bank. The
preferred arrangement is to detachably connect the spike 47
to the tube so that the stake may be first driven into the bank
The general sequence of operation will now be described
with reference to FIGS. 1 and 2. The siphon tube T having the
control device 5 mounted thereon is initially primed by
removing it from the stake 47 and filling the tube with water. It
is then placed across the ditch in a manner to start the ?ow
through the tube and attach it to the stake so that it will be
supported in an upright manner as shown. The tube will then
transfer water in a siphon action from ditch D to ditch E. A
high water level selected for discussion purposes and
designated H in FIG. 1 will buoy the float 23 up and through
the linkage assembly the flaplike member is moved generally
parallel with the inside of the tube in the fully open position
shown in FIG. 4.