The leading eight foods that will back up your drain are:1. Egg shells
2. Rice
3. Pasta
4. Grease
5. Potato peels
6. Banana skins
7. Celery
8. Coffee grounds
If you trash disposal blades should pall, try putting in some ice and grinding them up.For that funky smell that originates from your disposal try this:1. Grind up a couple of ice
in the disposal.2. Follow with cold water.3.
Finally drop a sliced lemon or orange in and grind it up.But most crucial to the total functioning of your disposal is to keep foreign object out of it. Rocks, pencils, wire, plastic and bones must be dealt with in the garbage and not in the disposal.