Even though a leaking garbage disposal is a fairly simple fix, there can be a few factors that can complicate the process somewhat. For example, there are a few different places within the connection system that may spring a leak, so often the hardest part of fixing a leaking garbage disposal is trying to determine where the leak is coming from.Aside from the obvious connections, possible areas for leaks include water inlets and outlets as well as rings and seals.
Physically remove lodged objects. If a large object has become lodged in your garbage disposal, you will need to remove it before proceeding with the cleaning process. First, it is important that you turn off the fuse that supplies power to the disposal unit. This is to ensure that it does not turn on during cleaning. Alternatively, you may be able to unplug it from under the sink, depending on the design.
To reseal the leaky flange, you must first detach the garbage disposal. Start by loosening the screws securing the main drain pipe to the disposal, then loosen the screws in the metal clamp securing the dishwasher hose to the disposal and detach the drain pipe and dishwasher hose from the disposal. Loosen the screws in the mounting ring that connects the disposal to the metal mounting assembly beneath the sink, then pull down the disposal and carefully set it on a clean, dry surface. Loosen the bolts in the mounting assembly with a wrench, then pull down the mounting assembly and set it near the disposal.
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.