With the floats at the top, and the weighted line at the bottom, the lead will conform to shallow water by itself. The lead on the net that I use is a foot taller than the front of the basket the whole length.

I'd just pile up the lead in very shallow water and make sure that the basket is above the thermocline.

Another thought:

I don't know how well it'd work if it was suspended under floats - the basket was suspended at the 5'-6' level, paralles with the pond surface, with the top of the lead at or near the surface of the pond.


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