mudhole, along those lines, a neighbor did the same thing, but used a couple hundred gallon tank. He has it pumped out every year too. He has a cabin by the pond and put in a "outhouse" with running water and a flush toilet.

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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).