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Old 08-05-2010, 09:30 PM   #1
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Dishwasher aerator on sink


I've bought a faucet with spray for a 4-hole sink, but I now see that one of the holes on my kitchen sink is used by the dishwasher/garbage disposal aerator. I need this fourth hole for the spray hose. Can I just unhook the aerator from the sink and just let it dangle under the cabinet? Or should I cut another separate hole for the spray hose? Or is it better to just return the faucet and get a different 3-hole faucet? (I like the separate hot/cold knobs better though)

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Old 08-05-2010, 10:27 PM   #2
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Dishwasher aerator on sink


You'll need to return the faucet. Perhaps a double handle with pull out sprayer

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Old 08-06-2010, 07:48 AM   #3
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Dishwasher aerator on sink


You could start by checking with your local Plumbing Code office. Some areas have removed the requirement for installing an Air Gap on dishwasher drain lines. They can also tell you what is permissible if you must keep it.
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Old 08-06-2010, 09:03 AM   #4
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Dishwasher aerator on sink


Around here, in place of an airgap we just have to run the dishwasher hose up high and secure it to the bottom of the countertop.

Just so you know what its for :

It's not an aerator, it's an air gap, and it prevents your kitchen sink water from backing up into your dishwasher and dumping out all over your kitchen floor. If you let it dangle under the sink you are kind of defeating its purpose.
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Old 08-06-2010, 09:59 AM   #5
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Dishwasher aerator on sink


Thanks for the replies! I remember the home inspector mentioning its purpose. I was going to tape it to the top underside of the cabinet. I live in Maryland. Is it permissible and safe to do that? Otherwise I'll just exchange the faucet tonight.
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Old 08-06-2010, 11:22 AM   #6
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Dishwasher aerator on sink


The main problem with doing that is it may malfunction later, and cause water to flow under the counter top, and ruin the cabinet, flooring or other items stored there, without you noticing it. If I were you, and considering moving the Air Gap, I would remove it and attach the hose from the DW to the underside of the cabinet so siphoning (which is the reason for the Air Gap) would not be a problem.

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