Probe cleaning and/or replacement intervals

[TX_Punisher]

salinity
PH
Orp

how often should they be

Cleaned: (what is the cleaning process?)

Replaced:

Salinity probe today shows 1.1 after holding steady at 34.5 for over a year.

Thanks for the advice.

 

[link81]

i would say calibrate bi-annually or yearly, and replace when it fails to calibrate.

 

[Marc W]

I’d like to know a good cleaning process as well