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If your buckets are not fully saturating your well water and releasing all the CO2. I will virtually guarantee you have another chemical reaction going on that accounts for it..it would never take 2 days in an RAS system to achieve full O sats...perhaps high calcium carbonate reaction taking the O2 and creating CO2....
I think you misunderstood about the O2 sat rate time factor. I was referring to Co2 not 02 when I said it took two days to fully liberate the C02 and bring the PH up from 7.5 to 8.3.
As far as getting up to full sat on oxygen it's not instantaneous either but a matter of minutes. Once you get close to 100 percent it's gets more difficult to get to 100 percent. Adding one more bucket would put it closer though.
BTW on and off for any pump that many times -- especially a well pump -- is a really bad practice. A good way to have problems IMHO.
I respect your opinion on this but respectfully disagree.
