If the plumber’s putty has failed, you might be able to stop the leak by replacing the putty. To do so without removing your garbage disposal, loosen the retaining bolts until a gap forms, force the new putty between the pipe and flange, and retighten the bolts to secure the putty into place. If this does not work, then remove your disposal unit and reseal the flange. To do this:
• Run water before and after you use the disposal If something has been put in the disposal that should not have been, use tongs or pliers to pull the material out. Never use your hand. To clean a garbage disposal of built-up sludge and debris, fill it with ice cubes and a cup of rock salt and then run it for about five seconds. If your garbage disposal smells bad, you can deodorize it by running warm water down it while you grind a quartered lemon.
Before your garbage disposal installation appointment, please have on hand the garbage disposal you purchased, including all screws and other pieces that came with it. If the job isn't a standard garbage disposal installation project, and requires additional parts or labor to complete the service, additional fees may apply to cover the cost of the garbage disposal parts and the garbage disposal installation work.
Hot water, a good degreasing soap and a terrycloth rag. Try 409 degreaser and let it sit a few minutes, then run hot water on the cloth, add soap and rub the flange on top and underneath. There are commercial brushes available, but brushes don't always de-grease well. They are, however, very useful for cleaning crevices. Regular cleaning makes this job much easier.
As I have mentioned, garbage disposers for most people are just another kitchen appliance that we tend to take for granted, and this is one of the reasons I decided to bring this website to the internet. I have come across many customers over the years that only seem to notice this “gadget” when it goes wrong, and believe it or not, most of the time they go wrong is because they’re not cared for properly.
Some types of food remains are not easy to grind in a disposer. Do not put fibrous food items into your disposal. Help grind these items by putting in a few small bones or large ice cubes to the disposal. If the disposer won’t grind it up then turn off the disposer and remove the item with a pair of tongs. When using your disposer, make sure that the disposal is running with good water flow. Good water flow carries the waste down the drain line. Using too little water can create a clogged drain.
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.