Inquiring minds want to know. Why is measuring the DO near the upwelling bubble column important or more important than measuring the DO near the bottom near the diffuser and at other similar depths above the bottom in other areas of the pond?

There are charts that show % DO saturation when water temp and DO in mg/L(ppm) are known. I have one of those charts. It is a nomogram (nomograph). It also has a correction for altitude. Now I need to figure out how to post it. It is likely someone else has one of these charts. Sue should have one, so should Dr Willis and a few others.

Last edited by Bill Cody; 08/04/11 11:10 AM.

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