New dishwasher installation question

[OldFrenchy]

We are remodelling the kitchen; we have installed the sinks and granite countertops, and are about to install the dishwater (a Bosch). It will be located next to the sink, and will drain into the disposal. I have the 3-way valve installed on the hot water pipe ready to attach to the dishwasher.
My question is wether or not to get a vent installed for the dishwasher... we did not drill a hole in the granite for one, but I understand that by simply looping the outflow hose higher than the dishwasher drain and disposal that a vent is not really necessary. Am I missing something in this picture?
Thanks in advance!
OldFrenchy

[chandler]

Some manufacturers and some localities require a vent, but they are not absolutely necessary for proper operation if the loop is kept at the top of the cabinet. Clamp it to the framework of the cabinet with a screw so it won't have a tendency to fall.

[OldFrenchy]

I'll do it. Thanks, Larry!

[CSG]

That loops basic function is to prevent food from your disposal during normal operation being kicked back into your dishwasher.

So if you ever have a friend who complains about food on their clean dishes....tell em to make a lOOp

[KenB]

My question is almost the same as OldFrenchy's so I will piggy-back here rather than starting a new thread.

My dishwasher has an air vent. I am not changing the dishwasher but we are having a new granite counter-top installed with new undermount sink and faucet. We want to have a "clean look", with only a single handle faucet coming up through the counter-top. So I am pleased to hear that I can re-install the dishwasher without an air vent as long as loop is kept at top of cabinet. One wrinkle I was wondering about: Is there an air vent available that could be installed inside the cabinet - something similar to what I have now but it would be inside the cabinet and not visible? Is this an option that is ever used and is it worth considering? I might consider this just for the "comfort" of having a vent that might avoid an issue with a future home inspector or buyer of the house. Best of both worlds, so to speak: the air vent would be there but not visible unless you looked for it inside the cabinet.

Thanks

[shacko]

#1 It's called an air-gap.

#2 There are hundreds of thousands that are hooked up with a high loop

#3 Air gaps need to be exposed, there are none that I know of that you can put under the the top.

#4 Don't fret your situation, unless you have an inspector that wants the air gap thru the top a high loop will work, luck.

[CSG]

#5 the reason the vent goes up high is i believe by most codes it is required to have it higher then the flood level rim of the sink

[OldFrenchy]

As a follow-up:
I installed the Bosch dishwasher, looping the discharge hose up into a hole in the cabinet wall that I cut so that it touched the bottom of the countertop and then down to the disposal. The instructions requested at minimum of 20" of height from the exit point of the dishwasher discharge hose to the top of the loop...I easily made it 33". The machine works like a charm (so far!).
There is also a vent hose attached to the side of the machine that the instructions say not to touch (or block, either).

[rogerb]

California requires air gaps, but I always break code on this issue. A simple high loop is a far better option. I never want to risk dirty water on the counter top. Air gaps spew water too often. I have never had an issue using high loop and that is how it is done in 90% of homes outside CA. When the code violation is pointed out during buyer inspections, I give the speech, the buyer agrees and it'
s rarely an issue. Once i gave a $100 allowance to have an air gar installed. ;-)

[mstone]

Can anyone post a small image of the "looping" you are talking about? I have the same situation as describe, and want to install an undercounter water filter, and use the "hole" for the air gap for the new faucet, so I need to figure out what to do with the vent pipe....

I am not a plumber so I need all the help I can get.

Matthew

[OldFrenchy]

As a further follow-up:
we have been using the Bosch continually for over a year now and have not had the slightest problem with the looping arrangement on the discharge hose.

OldFrenchy

[jdayo]

I read your post about looping the drain hose to create a vent for your Bosch dishwasher. I plan to do the same. BUT... what in the heck is that vent on the right side of the dishwasher all about? Is there suppose to be a hose connected there? And if so, where is it suppose to go? The manual only says not to block the vent from the inside. Thanks in advance for any insight you can give to me.