Using a Johnson Tee in California? Legal?

jscevaFebruary 17, 2012

Trying this again because my previosu attempt dissapeared....so if this question gets posted twice, apologies in advance.

Does anybody know if using a Johnson Tee on a dishwasher will pass code in California (i.e., does it satisfy Cal. Plumbing Code 807.4)? Or do you *have* to use a countertop-style air gap. My understanding is that a Johnson Tee *is* an air gap, and they are UPC approved, and I have seen some vague references to them being used in LA in the past, but can;t find any solid info.

Specifically, I am in SF...but any California feedback would be appreciated. I am also trying to get a straight answer locally, but ammo from real-world examples would be great.

Thank you for reporting this comment. Undo
brickeyee

You can try calling the AHJ.

    Bookmark   February 19, 2012 at 1:53PM
Thank you for reporting this comment. Undo
davidro1

remember what an air gap is by definition. Ask not if a J tee is a thing known to AHJ.

some people have thought that a high loop is a thing to buy in a package with a label on it saying "DW High Loop". This is not the case, for reasons obvious to almost everyone.

Some people have thought that an air gap is a thing to buy in a package with a label..... same principle. (!). Know what an air gap is, by definition. Then you control the discussion with the one who got hired to enforce the rules made by a committee of ...

    Bookmark   February 21, 2012 at 12:27PM
Thank you for reporting this comment. Undo
lalithar

Jsceva,

Any luck in getting this OK'd up in SFO? I am down in peninsula and want to do this as well.

Lalitha

    Bookmark   March 16, 2012 at 3:28PM
Thank you for reporting this comment. Undo
jsceva

@Lalitha - sorry for the delay in replying, I had given up on monitoring this thread for lack of new info....

No luck so far. The SF plumbing inspector categorically rejected the Johnson Tee, though part of the reason was because I am in the city and the vent would be on a wall in a lightwell next to another building...you might be successful in a freestanding house situation. I would suggest going directly to your local inspector and discussing the situation.

After rejecting the johnson tee idea, the chief plumbing inspector then worked with me and came up with an idea that MAY work to avoid a countertop fixture in our case...if it eventually does work out and pass inspection, I will post more details. Right now, (a) I am still not fully understanding what he has proposed (hope to get more clarification today, actually), and (b) I don't want to jinx things before it is all settled!

    Bookmark   April 20, 2012 at 11:15AM
Thank you for reporting this comment. Undo
brickeyee

There are plastic boxes that can be mounted in the wall near the sink to hide a DW air gap.

The main problem is that if the line from the gap to the drain clogs the gap is going to spew out a few gallons of water when the DW empties ad you need a way to control the water.

    Bookmark   April 21, 2012 at 9:12AM
Sign Up to comment
More Discussions
Costco Water Ridge Dual Flush -- Need reviews
Any more reviews on the dual flush Water Ridge toilet?...
smudgecat99
Water Softener - Help with Proper System Selection
Hello, I decided to put in a water softener system...
badsha
Improving water pressure to outside spigot
I would like to improve the pressure and flow rate...
greasetrap
Hot water backflowing into cold supply
OK, I'm rephrasing my question, as what I'd asked before...
pjb999
Salt-free water conditioning
Hi all, Considering installing a water softener in...
tucker_troy
Sponsored Products
Nourison Home and Garden Blue Indoor/ Outdoor Rug (7'9 x 10'10)
Overstock.com
Contemporary Indoor/Outdoor Area Rug: Couristan Rugs Outdoor Escape Cocoa Beach
Home Depot
Small Tiffany Accent Table Lamps for Bedroom
ParrotUncle
Canaan Rectangular Table Lamp by Jonathan Adler Lighting
$520.30 | Lumens
Jaipur Desert Yuma Indoor/Outdoor Area Rug - RUG119429
$80.64 | Hayneedle
Mother Earth Sculpture - GOLD
$1,035.00 | Horchow
Tiered Metal Triplet Stand
$55.99 | Dot & Bo
A19 Lighting | Gran Ceylon Wall Sconce
$128.99 | YLighting
© 2015 Houzz Inc. Houzz® The new way to design your home™