A garbage disposal leaking underneath is typically caused by a degraded rubber sink mounting gasket, loose stainless steel snap ring, cracked plastic housing seams, a loose discharge waste pipe flange, or a failing dishwasher inlet hose clamp. If water drips from the very bottom center of the motor housing, the internal shaft seal has worn out, meaning the entire unit must be replaced. Verification: Dry the area completely with a paper towel and run water to trace the exact source of the droplet formation.
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