Why Garbage Disposals Clog
Disposals clog because over time the waste line or trap get coated and eventually obstructed with food waste. Not all food waste is created equal. Here is a quick rundown on the most common causes of clogs:
Lack of Flushing Water
Not putting enough water down the disposal when it's grinding is a sure way to get a clog. Over time the lack of flushing water does not carry the waste material fully through the drainage system and it builds up in the drain lines.
Grinding Egg Shells or Coffee Grounds
These items may not seem like a problem but are a big problem. Grinding egg shells or coffee grounds will create very tiny granular waste that will stick to any sludge in the pipe and quickly create a clog.
Grinding Potato Peels
Potato peels are notorious clog makers. Once ground up they form a starchy paste similar to mashed potatoes and quickly clog the drain.Grinding Banana Peels
These are a similar problem to potato peels except they also add stringy fibers to the mix.
The simplest way to avoid a clog is to make sure you flush the disposal with plenty of water when it is grinding and for 30 seconds afterward. Then occasionally maintain your disposal by regularly grinding up pieces of lemon peel and ice cubes.