O/T dishwasher plumbing question

[38Chevy454]

Question for you plumbers out there, or anyone that has opinion is welcome to help.

On the dishwasher the drain line is supposed to go to an air gap, I guess this is to prevent possible reverse flow back into the dishwasher?

Here is my problem: got a new countertop installed and my wife forgets to have a hole cut for the air gap thing to mount. Already using a one-hole faucet mount, so can't get an extra by changing from three-hole to one-hole mount.

Possible solutions: 1. Just mount dishwasher drain direct to disposal without the air gap thing? Will this cause any real problem?
2. Can I mount the air gap thing up under the countertop, but not above like normal? Does this thing need to be above the sink in case it leaks?
3. Just have another hole drilled in the countertop like it was supposed to be in first place? I kind of like the idea of not having the air gap up above, it would be a cleaner installation without it.

Thanks for any help you can provide. http://www.jalopyjournal.com/ubbthreads/images/graemlins/confused.gif http://www.jalopyjournal.com/ubbthreads/images/graemlins/confused.gif

[junk runner jr]

Not suere if code restrictions are different there but here in Ohio all you need to do is run the hose directly to the disposal. Be sure to run the rose up as high as you can, or it won't work. Essentialy the dish washer needs to pump the waist up then it will run down into the disposal syphoning the last bit of waist water with it.

[Upchuck]

[ QUOTE ]
Be sure to run the rose up as high as you can, or it won't work. Essentialy the dish washer needs to pump the waist up then it will run down into the disposal syphoning the last bit of waist water with it.

[/ QUOTE ]

plus you don't want your sink water draining into your dishwasher

[DrJ]

I've been running one for years with just the outlet hose run up as high as possible, actually clamped to the bottom of the counter, and then back down to the Wasteking.

That's only about a two inch difference from an air gap and if a sewer backed up that high into a sink it's going to be causing grief either way.
Now, I must say I live in a Bungalow so there's no upstairs sewer to have a problem with, (up hill from the city sewer is another story, but that would overflor the toilets and tubs first anyway.)

The instructions mentioned this as an alternative if an air gap wasn't possible.

I've seen air gaps spew dirty water from dishwashers all over the counter, and I've had a drain plug and have the sink back up in a dishwasher and all over the floor in a system with an air gap, (on Thanksgiving with two families over, too http://www.jalopyjournal.com/ubbthreads/images/graemlins/frown.gif ).

No system's perfect.

[38Chevy454]

Thanks for the replies all of you. Sounds like I can get away without the air gap thing, as long as i have a vertical rise higher than the drain connection on the disposal.

[jerry]

i do appliances for a living and yo can just run it straight to the disposal. depending on local code. just run the hose and clamp it to the wall as close to the bottom side of the counter top as you can. all this does is preventdrain back from the diposal and sink from running down into the dishwasher.

go for it.


jerry