Hello,

I am presently using a programmable logic to cut my CO2 if PH drops below 6.1 and I would like it to cut the air pump at night when the PH goes over 6.9.

Is this something that can be done?

I have a timer for my CO2 from 8:30 to 19:00 and a timer for the air pump from 19:00 to 08:30.

PH1 Nominal value 6.1

Thanks in advance for your help,
Richard.