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Devac  ·  1214 days ago  ·  link  ·    ·  parent  ·  post: Pubski: July 28, 2021

    If it got attached to a boat anchor stuck on the bottom there would be little hope of recovery.

Maybe put it in a burlap sack and tie it over the hook/line? It won't impede the pull, but the added layer eases the separation while helping to protect the magnet against eventual damage. Our lab techs cover permanent magnet slabs in this weird fine rubbery cloth for some experiments, but I'd bet even some old jeans would work.