Dishwasher Drain Check Valve? - Appliances - DIY Chatroom Home Improvement Forum

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Old 03-23-2012, 06:26 PM   #1
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dishwasher drain check valve?

I just installed a new ge dishwasher and when I hooked up the drain hose to the dishwasher I noticed a rubber piece blocking the hole, instead of reading the manual I just cut it off. Well turns out the was suppose to stay on. Did I mess up the dishwasher and have to get a new part or can I run it with out the rubber check valve?


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Old 03-23-2012, 10:36 PM   #2
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dishwasher drain check valve?

That is a backflow preventer to keep the drain water from returning to the tub. If you're draining to a disposal or some point higher than the hose connection you'll get dirty drain water back in the sump without this piece. You probably should replace it.


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