Aquaponic Gardening

A Community and Forum For Aquaponic Gardeners

Hello People,

I would just like to pass on an experience I had with my Hanna Ph/Temp tester. I have had it for a little over a year. I store it in storage solution after each use.  The readings started drifting and would not stablize when I was using it. I  tried recalibrating the meter and it did the same thing. I contacted Hanna and they said replace the probe. 

In a last ditch effort I decided to take a toothbrush with some dish washing liquid and gentley brush the probe. I rinsed it off , re-calibrated , and now the meter works as good as new! 

Its worth a try. Maybe it will save you a few bucks.

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