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Does "Air Gap" refer to the space under a Bungee Jumper?

       While it is most likely an excellent idea for the Bungee Jumper to have a proper Air Gap----that is not the kind of air gap I am talking about here.  I am sure most of you recognize the little chrome shape cap located on the back of your Kitchen sink----or sometimes located on the countertop.  This "thingy" is called an Air Gap Device and assists in proper drainage of the dishwasher.  Most jurisdictions require them nowadays.  Water coming out of the cap during operation of the washer is signaling a plugged drain----and cleaning is necessary.

Air Gap Device 

     But this post is not about the device on top of the countertop.  It is about the part of the device "under" the countertop.  Because of its location, behind the sink, access and installation become difficult.  The hoses from the washer to the air gap device, and from the device to the drain connection, should be properly connected with hose clamps.  When the connections are not properly connected they can work their way off the device resulting in a flooding mess in the sink cabinet.

     It is a good idea for the home inspector to check these connections to make sure they are in place.  In this picture we see the "camera-eye" view of the device attached to the underside of the countertop.  Can you see that the black hose is barely holding onto the turquoise colored air-gap device?

Air Gap Device under the sink 

     In this next picture we can see the hose clamps stacked on top of each other at the drain connection.  Can you see the stains from past leaks?

Hose clamps out of place 

     As a side note, there is another issue here that is totally unrelated to the Air Gap Device.  The connection of the black ABS plastic pipe to the white PVC plastic connector is not allowed in most jurisdictions.  I know in my own area that, even though there are adhesives that claim to be satisfactory for both types of pipes, it is still not allowed, and regardless, the black adhesive used on this installation is NOT the correct adhesive.  I guess the thinking is that the jurisdictional inspectors don't want to be in the business of determining if the proper adhesives were used.

 

Charles Buell 

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15 commentsCharles Buell, Seattle Home Inspector • September 09 2008 04:39PM

Comments

Charles I am glad you pointed out the Air Gap and what's below. Most are clueless in this area as to what is going on.

Posted by Gary Woltal - Assoc. Broker REALTOR® SFR Dallas Ft. Worth (Keller Williams Realty) over 3 years ago

Inspector Charlie - Awesome observations and a great learning experience for me!

Posted by Carol Culkin, Dutchess County (Century 21 Alliance Realty Group ) over 3 years ago

hhhmmm, I'm surprised that the black pipe hasn't already come off the air gap device.

Sean Allen

Posted by International Financing Solutions over 3 years ago

Gary, you are right about that.

Carol, so did you stick your head under your sink----sunsmile

Sean, it was just barely hanging in there.

Posted by Charles Buell, Seattle Home Inspector (Charles Buell Inspections.com) over 3 years ago

Hi Charlie,

When I saw the title of your post, I was hoping you had an answer to my question.  This is a personal issue and it is driving me a little crazy.  When my washing machine drains, particularly in the winter, it often overflows the drain pipe spilling water onto my garage floor.  An internet search suggested it may because of an "air gap issue".  Does that make sense to you?  Plumbers I have consulted want to blame it on the trees and want to dig up my yard.  What do you think?

I appreciate people who know such stuff.  A single woman can feel so alone with plumbing issues.

Posted by The Woodlands TX Kathi Frank (Prudential Gary Green Realtors) over 3 years ago

Kathi, "need more input, need more input":).  How old is the house?  Where are you?  Based on what you tell me and the fact that it is worse in the winter makes me think you might want to pay attention to the plumbers:)  Also PICTURES, and more pictures!

Posted by Charles Buell, Seattle Home Inspector (Charles Buell Inspections.com) over 3 years ago

Here in El Paso I come across this very often on inspections also on new homes.

                                                       ~Newbie

 

                                                                      

Posted by Roy A. Peterson P.R.E.I. (Domicile Analysis of Texas) over 3 years ago

And here I always thought an air gap referred to the empty space between a bungee jumper's ears...

Posted by Klee B. Patel over 3 years ago

Klee----most likely true:)---then there are those trad climbers:)

Posted by Charles Buell, Seattle Home Inspector (Charles Buell Inspections.com) over 3 years ago

Gee, As a trad climber I've always maintained my claim that my Thermos is the greatest invention ever.  I mean it keeps my coffee warm in the winter and my tea cold in the summer but how the heck does it know which is which.  As far as swaping brain pans go it's gotta be.  Trad climber, Sport climber, de evolved bacteria, ice climber, free soloer, toe jam fungus, and finally A5 aid climber.

Posted by Klee B. Patel over 3 years ago

you get another point for playing well with others and sharing new to me information.  thanks  cheryl

Posted by Cheryl Willis, MO BROKER Mt Vernon, Monett, Aurora, Barry & Lawrence Co. (RE/MAX Solutions- OZARK MISSOURI) over 3 years ago

Nice pics.  I would assume that if the bungee jumper didn't have an air gap he would never need one, at least again.  Have you noticed that most home owners think plastic is plastic.  If it fits use it.

Jack

Posted by Jack Gilleland (Home Inspection and Investor Services, Clayton) over 3 years ago

Klee, I would say you have that order just about right----except I would reverse the first two:) (How does the thermos know?)

Cheryl, are you accusing me of playing nice with others?:)

Jack, and that is what gives us fits!

Posted by Charles Buell, Seattle Home Inspector (Charles Buell Inspections.com) over 3 years ago

I'll make the claim that Trad climbers are smarter for two reasons.

1.  Darwin takes care of the stupid and foolosh climbers quickly leaving the smarter ones to frolic on the cliffs with their friends, aliens, and Big Bro's.

2.  you only have to do minimal amounts of thinking when your clipping bolts and following that line of steel hangers. 

I think the thermos is the next best world wonder (I'm gonna say magic).   

Posted by Klee B. Patel over 3 years ago

Klee, it is a real good thing that "aliens" are real, but I still think more climbers die trad climbing than they do bolt clipping:)  Regarding the thermos thing---it is actually because of the "gap"----but yet a different kind.

Posted by Charles Buell, Seattle Home Inspector (Charles Buell Inspections.com) over 3 years ago

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