Your point on just using the visio and saving the co2 money, is a good point. Thats one reason why I started the thread.
If a tanks evaporation level is not enough to allow for kalk to keep up with that tanks particular load, then another method is needed, but it seems to me if, a kalk reactor will keep levels up, then why bother with co2.
The common reasons I see, is so neither has to be overdriven to keep up. You can drive a co2 reactor harder but not a kalk reactor. A co2 reactor does give nice alk levels.
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Doug
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