03-28-2008, 08:33 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,664
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when the dishwasher drains do you have the garbage disposal running? do you ever fill the sink then drain it? could be because the sink is higher than the dishwasher it is back siphoning into the dishwasher. normally the dishwasher drain has an air gap to prevent a back flow.
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