Originally Posted by 1997pond
Thanks for the info on the concentration. How do you generally do the math to achieve at least a 90 PPB? I assume you use a weight per volume ratio specific to the chemical.

Barring really bad luck, I'm not too worried about keeping the PPB steady for 30 days. There is not a lot of flow through the pond as it lacks a spring or stream and the drain field is not big relative to pond size. Unless we get really whacked with several days of heavy rain the pond keeps a steady level.

A rough rule of thumb is take the surface area x 1/2 the max depth to get the acre foot measurement. For 1 ac ft of water@ 90 PPB you need 7.78 fl oz.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).