Garbage disposals help us get rid of food waste, so it’s not surprising that the appliance may be susceptible to gross smells. A capful of bleach or grinding up citrus peels can help eliminate any foul odors coming from your garbage disposal. However, if nothing seems to help your appliance in the smell department, it may be catching food particles within its crevices. We recommend disassembling your garbage disposal to clean it, or replacing it if it’s old.
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.