pH too high?
 

For the last few months I've noticed my ph has been 8.6-8.9

Alk is at 9.5 dkh

My ph probe is calibrated and working.

What would cause such a high ph and should I do anything?

I have a kalk reactor, But i havent ran the mixing pump in over a month now. Today i completely bypassed it.

some stray voltage or EMI.

would cause higher PH or would cause my prob to give an incorrect reading?

would cause incorrect reading

Yup that's exactly it. Looks like it was my orp probe. Once disconnected it's reading 8.16

Thank you

Your welcome, sometimes if the probes are too close to each other that can happen.