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How to pull a deep well submersible pump
Turn off power to the pump.
Make sure everything is good and strong; a mistake here cannot only make your pump unsalvageable, it can cost you life or limb.
Mount a hand-crank winch in such a way as to lift the pump out partway.
Hook the winch to the flange that connects flexible pipe to the storage or pressure tank. Winch the pump so that there's a few feet of the flexible pipe outside the casing.