Electronic Water Level Control

Sensing unit monitors the poop water level by making
electrically conductive water a part of the control circuit,
this sensing assembly consist of a probe housing and a
remotely mounted control box. The control box performs
two functions. First it activates a solenoid fill valve for water
addition when the water level drops to the middle probe. If
the water level continues to drop beyond the low probe, the
control box interrupts the pump and lighting circuits.
The pump and lighting circuit will engerize when the water
reaches the middle probe during the fill cycle and de-enerize
the solenoid valve when water reaches the high probe.