Quote:
Originally Posted by reefmutt
That's quite a low ph swing but it doesn't really make sense. I suspect the probe is off.
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I have to check the probe, since I am highly suspicious something is wrong with it, or where it is placed.
I did check the Apex and Temp Compensation was not ticked off, and compared to temp, graph of PH was following TEMP almost perfectly.
Certainly will do a re-calibration.
Maybe also check the Airline coming from outside since it did wonders to PH when I first hooked it up.