new disposal: drainage problems


Old 06-16-12, 04:30 PM
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new disposal: drainage problems

We just installed a new disposal and the sink and dishwasher will not drain unless the disposal in turned on. Can't figure out what to do. Sink drains just fine when the disposal is turned on.
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Old 06-16-12, 04:56 PM
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Welcome to the forums! Where is your drain waste arm in relation to the elbow on the side of the disposal? You may want to post a couple of pix of the plumbing under the sink so we can see what you see.
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