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Noisy kitchen sink

I have a double kitchen sink. When I empty the sink without the disposal it make a horrible sucking noise. The dishwasher also backups in the bottom of the dishwasher. How can I fix the noise and keep the water of getting back in the dishwasher?

Re: Noisy kitchen sink

It might not be vented correctly. Adding an automatic vent if legal may help. Sometimes removing the noise baffle in the disposal makes a difference also. The drain hose for the dishwasher should loop up to the top of the cabinet before entering the disposal or have an air gap.


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