Plumbing suppliers here in L.A. just look at me and ask what drugs I'm on.

You might want to look here :


https://www.askmehelpdesk.com/plumbing/if-show-you-johnson-t-141044.html

Johnson Tee Illustration (http://www.theplumber.com/jtee.html)

Thanks, califdadof3 - but I know what it is - I want to buy one, but locally they are not available - do you know of an internet site, maybe in seattle, where I can order one?

Have you gone to home depot or lowe's or whatever stores you have out there and asked them for the pieces to make a washer stand pipe?

That is what a johnson tee is. Its terminology. So if you know what you want and the lengths of pipe you can make one. See either of those posts for instructions.

Its not an actual off the shelf item.

Ya don't just purchase a Johnson Tee you build them.
And you wish to install one because?? Cheers, Tom

Agree with above posts: you cannot buy Johnson Tee, you build it using rough materials. Besides, You drain Dishwasher using garbage disposer, not Johnson Tee.

I question legality of Johnson Tee in Los Angeles. Call L.A.Building Dept. between 7:30 and 8:00 AM and ask any Inspector who will pick up the phone. There are tons of phone numbers listed - but if you dial 311, City Services Operator will transfer you to the right department.

Thanks, guys, but I think it is something you can buy, 'cause I once was on the site where they manufacture and sell 'em, but I can't find it now - as far as makin'em goes, as far as I know, it's not just a 'tee', but also includes an integrated backflo preventer which diverts the undesired backflo outside, instead of back into your dishwasher - cobbling all that together with plastic is possible, but not too purty - an' the reason why I want to install it is that I don't want an ugly air-gap on my sink an' there's not a lotta room under my sink fer a loop an' if it starts ovwerflowin' outside, it'll stink up my neighbor's yard an' he's a jerk who deserves all the misery he can git, anyway

If you don't want to air-gap than you can high-loop your Dishwasher drain and connect it into you Garbage Disposer or directly into the drain using Branch T and connecting it before the trap. See the drawing...

I think it is something you can buy, 'cause I once was on the site where they manufacture and sell 'em, but I can't find it now
When you find it please link us up so we can tell Google because they can't find it either in the meantime you might want to study how a Johnson Tee is constructd, Just in case. Cheers, Tom
PS** I'n with Milo, Install a high loop.