January 23, 2014
First off, you need to verify that the discharge (water out) hose from your dishwasher comes in from the top of the dishwasher and is above the normal water level of your sink so that any water backups won't drain back into your dishwasher. It's a fairly common problem that even installers make sometimes.
Second, it's generally not recommended to connect the dishwasher to a garbage disposal unless you must since the dishwasher detergent can deteriorate/corrode the garbage disposal over time. So, unless you have a stainless steel garbage disposal or only a single sink, connect the dish washer to the side closest to it and connect the garbage disposal to the other.
To answer your question, a garbage disposal will reduce clogs caused by large food particulates in the drain. It will make them much smaller and even act as a plunger in some circumstances (though you really shouldn't). I always suggest the Insinkerator brand since it does such a great job, has a great warranty, and stays quiet. You get what you pay for.
But yes, it will make a difference. You need to find out if your model of dishwasher has a built-in disposal to chop-up food particles as it runs or if it's a fairly old model that requires you to clean it every now and then. If it has the built-in garbage disposal, don't worry so much about that side.
If you decide to wash dishes in the sink (which defeats the purpose of a dishwasher), wash them on the garbage disposal side and rinse them on the dishwasher side. If you pre-rinse your dishes before putting them in the dishwasher, there's no need. Just scrape them off into your garbage disposal and put them in the dishwasher. The detergent will break down any leftover food. Your water bill will thank you.
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