FWIW, take a large waterproof tarp and spread it out on the ground where you want them to drop the lime. See if they can drop the lime in the center of the tarp, then cover it. If it gets wet out, it won't clump.

You'll be suprised on how small of a pile a ton of lime is!

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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).