BL121 Hannah Chemical Dosing Controller Fault Finding

This is a fault finding exercise on a Hannah dosing system.
Diagnosing a fault causing a water feature to go green.
I don’t take responsibility for your actions. Make sure you are trained appropriately before doing anything like this.

[@watersprayer]

Thanks. I like the unit wish the price was a little lower.

[@hughbart.images]

I think last I checked my price to buy them is around $2,400. Significantly cheaper than a good Prominent system but there are cheaper options. I just find these hold calibration much better than a Chemigem or Aquarius unit.