Where Is Knockout Plug Located?

Lay the garbage disposal on its side on a firm work surface, such as a sturdy work bench.

Locate the black plastic threaded fitting that protrudes from near the top of the disposal.

Insert a flat blade screwdriver into the center of the fitting until it comes to rest on the knockout plug.

Hit the handle of the screwdriver sharply with a hammer until the plug loosens from the fitting and falls into the garbage disposal. Remove the screwdriver from the fitting.

Turn the disposal upside-down to let the plastic knockout plug fall out.

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