I’m currently dosing kalk and seeing good PH results, and also using a CO2 scrubber. We caught some nice weather the other day, and my wife had the windows open, for about 2-3 hours. I experience a nice bump in PH, but I’m wondering if this short period of time with open windows can give a rise in PH for 3 days following? Before the bump, PH was holding around 8.20-8.24, and it has now dropped back to a little below that level. I’m guessing my CO2 scrubber media is exhausted at this point, but wondering if I should look into PH probe drift, any other equipment issues, or if the fresh air really causes the bump…
(red arrow is where the windows were open)
(red arrow is where the windows were open)