14/12/2022
LOW YIELD BOREHOLE
As irrigation and pump installers we frequently face challenges that can leave us scratching our heads. In this case how to deal with a low yield borehole.
Our solution was to install level probes in the hole so as to turn off the pump when the water level dropped too low allowing for a recovery period and to start pumping again when the water reached the top probe.
Unfortunately this borehole has demons in it and we experienced cycling on the low level probe before the water level reached the top probe.
We then installed a separate liquid level relay with sensitivity adjustment thinking that the smart pump controller was the problem. Unfortunately the standalone liquid level relay was plagued with the same demons.
Our final panel design that is currently undergoing testing is a standalone liquid level relay with a delay on timer. The delay on timer functions as a filter for all erroneous cycling.
We will beat those demons into submission.
Advantages of this panel with a smart control box.
- water level sensing in the borehole
- water level sensing in the storage tanks
- run dry, overload, underload, over and under voltage, pump stalled protection.
