I aim for 6.7. Kevin I'm impressed you can get such a difference after the second stage, mine is 6.7 after stage 1 and 6.7 after stage 2. I'd love to know what your flowrate is through the reactor?
And to answer the other questions, I run about 60ml/min and with my current reactor about 80bubbles/min (slightly faster than 1 per second). In previous larger reactors I had the bubble rate as high as 160-200 bubbles per minute. In a smaller reactor (which I now run as sulfur denitrator but that's another story) I had a bubble rate less than 60 to maintain 6.7 at 60ml/min. I like smaller reactors, same results+less cost.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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