pH too high?

[MarkoD]

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.

[Cal_stir]

some stray voltage or EMI.

[MarkoD]

some stray voltage or EMI.

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

[Cal_stir]

would cause incorrect reading

[MarkoD]

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

Thank you

[Cal_stir]

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