Garbage Disposal Smell

I've tried a lot of these remedies to no avail. The last thing I tried was to use a brush and thoroughly clean the underside of the rubber splash guard. Inseting the brush all the way into the disposal, and pulling up on the splash guard, inverted the rubber upwards for easy cleaning. There was quite a bit of sludge and was apparently the cause of the smell. The stopper had a build-up of sludge around the rim as well.

the rubber splash guard on the ISE models is replaceable, and not expensive. the tricky part is removing the bottom of the disposal unit to remove and refit the new one.

while it is apart, you can check for sludge on the inside of the unit more easily.

by the way, I did try Tim's trick and it worked well for me. When I had taken off the transvers pipe from the disposal side to the 1 1/2" vertical piece, the entire transvers pipe was coated with about 1/2" of the black sludge as well, so for 8 bucks I replaced this pipe and the rest of them down to the p-trap.

with the cost of the rubber splash guard and the pipes, it was about 3 hours (2 trips to store) and 20 bucks. I also replaced the rubber gasket on the side of the disposal that prevents leaks as the water leaves the disposal


the nice thing about ISE models is that most of this stuff is available and not expensive. It is also interchangeable between models, in many cases.