I suspect this PH Probe is having issues

[Wiskey]

Just a thread for fun,.. I went to check my PH probe to get an idea for daily swing as I was setting up my fuge light and saw this:
PHProbeIssue by Wiskey2727, on Flickr

Granted I haven't calibrated for a while, but this is silly.

Whiskey

 

[Doctorgori]

I recommend always backing up a pH probe. Next to heaters they can be notoriously unreliable. I posted a thread for pH probe commendations.
I used to have a Pinpoint. it was battery operated and portable
But yeah, unless you are making vinegar brine, I’m gonna say replace that probe

 

[Randy Holmes-Farley Verified Community Expert]

It's that steady decline that will kill you. lol

 

[Wiskey]

I don't really chase PH numbers so I didn't worry about this for a while, but I just looked into it tonight. Turns out that that I had knocked the connector loose on the Apex, once that was fixed it calibrated just fine.

Whiskey

 

[jjencek]

I had the same problem. A dip in vinegar solved it. It was just dirty.