You can build a berm from the material in the bottom of the pond before putting down the fabric or use pavers/landscape blocks or cinder blocks to make the berm. Lay the fabric over those and then cover the fabric with the gravel/sand.

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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).