Second chamber PH?
 

What should the Ph be when coming out of the second chamber? My second chamber is just a run through so that the media can mix with any remaining Co2, and also to help elevate PH. So I can't figure out if the first chamber which is mixing with the CO2 is at a low enough PH.

The pH in my second chamber is not significantly different than the first. The difference is like 0.01. (I run the first chamber at a target of 6.7). I don't know if that means I'm running the effluent too quickly (60ml/min) but anything less than that and the levels start to drop, so, I don't have much wiggle room.

I would take a few measurements of the pH in the first chamber (disconnect the second chamber temporarily). Then at least you know what's happening in there without guessing from the second chamber's pH.

isn't the second chamber suppose to be 7.0
to equal out what the rector puts out .


mike