Thanks Esshup, a lot of good advise and experience in that one reply!

I found this calculator online where you input length and width if you have a rectangular or mostly rectangular pond and average depth. My pond is oval, 200' by 100' and currently depth in middle is probably 6-7' and so using 3' as average depth I get .46 surface area acres and 1.46 acre feet.

However if I use a planometer tool and outline the surface of my pond on an aerial map I get closer to .3 surface area acres and in the calculator then acre feet would be .94 acre feet.

Is this right? You say 1/2 surface acre 10' deep would be only 1/4 acre feet and my math says my smaller, shallower pond is 4 times that much?

Or is my average depth with a gradual gentle slope even to the deepest part the issue and my average depth might be closer to 2 feet?

I'd like to get the acre feet nailed down to use the right amount of sonar (wow is it really nearly $3000 a gallon? that has to be more expensive by the gallon than printer ink or white out!)

If I only have to pu in 1/2 oz or 1/4 oz in my pond, could I just put that amount right in my aerator plume (from a boat) and let it spread that way?


Last edited by canyoncreek; 07/31/14 10:11 AM.