PH meter calibration solution.

[jcrusher556]

I just ordered myself a Milwaukee mc120 ph monitor off of bulk reef supply. I only ordered one bag of the 10, 7, 4 solutions for now. My LFS has solutions at their shop but it’s not Milwaukee brand. Does it matter what solution I calibrate these monitor with? Or is it like brand specific solutions you have to use?

Thanks!

 

[Sean Clark]

Any solution is fine to calibrate with. Obviously just make sure that you are using the appropriate 10, 7, 4 solution. Pinpoint in believe are 10.01, 7.01 which doesn't really matter in the big picture.

 

[Randy Holmes-Farley Verified Community Expert]

I agree, brand does not matter. Quality does, as does age since especially pH 10 solutions can drop in pH as CO2 enters them.