Good day all,
I need some help understanding something. I calibrate my probes every 3months. I was calibrating my PH probe and this time I used solutions of 4.0 and 7.0. I usually use 7.0 and 9.0 however I ran out of this solution.
Lets say my tanks ph value was 8.1 before calibration.
I cleaned containers with RO for the ph solution and started the calibration process with 4.0 and 7.0.
Everything was a success and put the probe back into the tank - the probe after 30mins settled on 11.3 ph which is impossible.
I then recalibrated and got 10.2. I web out and bought 7.0 and 9.0 solution. Recalibrated and the result was a PH value of 7.6 ....
The probe is 6 months old .....
I don't know where to go from here any help?
If I do a color triation test I get 8.1ph ....
Bookmarks