Reason Why It May Leak: When the rubber gasket gets old it can develop a leak. Long periods of disuse when there is no water in the drain and garbage disposal can cause the gasket to dry up and leak. If you remove an older garbage disposer for any reason and then put it back it may require a new rubber gasket to get a watertight seal again. Also, if the gasket is not locked evenly on all three sides then it will leak.
Another common cause for a leaking garbage disposal is the disposal flange. A leak at the very most upper area of the garbage disposal could be the garbage disposal flange which goes through the sink. A garbage disposal flange should be sealed with Plumber’s putty and then tightened from underneath the sink. If this is not tight enough or if it has managed to come loose (which can happen) then the garbage disposal will have to be taken down so the flange can be resealed and then the garbage disposal can be rehung.

Garbage Disposal

×