If putting a drain through the toe of the dam, you will need to compact the dirt under, on the sides and on top of the drain pipe, in addition you should have an anti-seep collar or two on the drain pipe.

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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).