Do I need an Air Gap Faucet?

jcasola5May 11, 2011

Hi all. I've searched this topic and can't find an answer so I hope you guys can help. I just bought a Watts Premier 5 stage undercounter RO system. It came with a really cheap air gap faucet, so I went out and bought a better quality water dispenser faucet. I just unpacked everything and noticed that the new better faucet doesn't appear to be an air gap faucet. The cheap one included has red and black tubing coming out the bottom while (with an extra blue tube) while the new faucet has no tubing. So my question is did I buy the wrong type of faucet to use with this RO system? Is an air gap faucet necessary or only required in certain circumstances? Would really appreciate the advice of all the pros on this forum. Many thx.

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If you are plumbing the drain for the RO directly to a waste line then yes you need an air gap. If the RO can be drained to a laundry tub there just needs to be a 1" gap between the drain line and flood rim of laundry tub.

    Bookmark   May 12, 2011 at 7:53AM
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Thx RJ. Not sure what you mean by a "waste line." Obviously I know nothing about plumbing. I am having this installed professionally, but wanted the views of the good folks on this forum before I hear what my plumber suggests. This will be installed in a seperate coffee station area in my new kitchen. There will also be a small bar sink there with a drain. So no possibility of a laundry tub. I think I'm hearing you say I need an air gap faucet and that I need to return the one I bought.

    Bookmark   May 12, 2011 at 9:03AM
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yes, air gap one.

    Bookmark   May 12, 2011 at 10:59AM
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Thx guys. Just found out I can order an Airgap add-on for my faucet, so I've done so. Should all be good now. BTW, is this "Air Gap" stuff common knowledge among reputable plumbers and will they know how to install this thing?

    Bookmark   May 12, 2011 at 11:23AM
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Make sure what you ordered is an AIR GAP and not a check valve. They are not the same.

You would be better off with an air gap faucet.

Air gap faucets prevent cross-contamination. Air gaps are code required when connecting a potable water appliance to a drain.

    Bookmark   May 12, 2011 at 12:05PM
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Thx justalurker. The website description of the product said "Air Gap" so I hope that's what it is. Now just need to hope my plumber (chosen by my GC) knows about this stuff.

    Bookmark   May 12, 2011 at 12:44PM
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Is this a Master plumber, or is this someone who acts as a plumber when people are willing to pay him to act as a plumber?

One way to find out is to ask him if he can design DWV plumbing.

    Bookmark   May 12, 2011 at 3:01PM
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No, this would be a professional licensed plumber used by our very reputable and high-end (read pricey) GC. I haven't met them yet, but they will be around next week or so for istall, so just wondering about how common this knowledge and type of installation would be.

    Bookmark   May 12, 2011 at 3:53PM
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the answer is inside my question. A Master Plumber will know, and a whole lot more than I know. Nothing wrong with your asking him any question.

    Bookmark   May 12, 2011 at 5:44PM
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Perfect. Thx again for your help. If he doesn't know, i'll refer him to this forum!

    Bookmark   May 12, 2011 at 8:36PM
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