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Dishwasher In My Own Home

 
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Old 12-08-2011, 02:03 AM   #1
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Dishwasher In My Own Home


I am installing a dishwasher in my own home.
Becasue of the construction of the wall the cabinet will be on , which is not near the sink, I can not run a vent up the wall.

So I am looking at doing an Island vent. I have room in the cabinet beside the dishwasher to do this.

Usually with an Island vents I have seen the Vent stack goes up and ties into the main stack in the attic. I do not have access to the attic. I was wondering if I could Tie into the main stack (3") in the basement. above where I will tie in the drain to the main stack for the Dishwasher. Both would be below the Tie in for the Kitchen sink, toilet and tub.

If this is not a good Idea is an AAV my best other option? Thanks for any help.
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Old 12-08-2011, 07:08 AM   #2
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Re: Dishwasher In My Own Home


I'm having a hard time understanding what you wrote.

Lets start fresh. How far away is the kitchen sink from the dishwasher? You must have a working kitchen sink right?

Is it within 10'? Wisconsin code allows a 10' distance.

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Last edited by Oconomowoc; 12-08-2011 at 07:42 AM.
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Old 12-08-2011, 09:20 AM   #3
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Re: Dishwasher In My Own Home


I would bet that the sink isn't 10' or easy to access. So, the plan is to dedicate a drain for the d/w.
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Old 12-08-2011, 12:27 PM   #4
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Re: Dishwasher In My Own Home


Canadian code : my understanding is 5'. I am 12' away on the horizontal and going into the basement and back up to the sink and you have 16'.

I am looking at doing a dedicated drain. The type used on island sinks (Loop vent)

http://www.terrylove.com/forums/show...-A-tragic-flaw

Scroll down to the 4th post the one with the picture.

Usually the vent would go up a wall and tie in to the main vent in the attic, or go right through the roof. I do not have access to the attic, 1973 modular house.

So I am thinking from the post in the forum I mentioned above that I might be able to tie the vent from the loop for the dishwasher into the 3" main stack in the basement. I would tie the loop vent in above where I put the drain line for the dishwasher.
This would be below where the kitchen sink, toilet, tub and vanity on the main floor tie into the main stack.

Because I am tieing in an 1&1/2" line to a 3" line there should be enough air and not syphon out the dishwasher line even though the vent tie in would be below the other drain lines.

http://s1224.photobucket.com/albums/...drainlines.jpgI have posted a line drawing that I hope helps (ignore the colored background and red green and blue lines, they are part of sketchup.)

Thanks for your help
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Old 12-08-2011, 12:56 PM   #5
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Re: Dishwasher In My Own Home


Forget that. Google "dishwasher into a standpipe" and click on "images".

That will give you an idea. Somehow you need to figure out local codes for an air-gap and standpipe requirements. Forget island venting all together. Use an AAV. Put the standpipe in a cabinet or location that close and accessible then run the drain. Make sure you have a clean-out for the horizontal run that goes into the stack.
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Old 12-08-2011, 03:48 PM   #6
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Re: Dishwasher In My Own Home


I can use AAV by code not considered the best but is acceptable. If I put it at the top, just under the counter top in the cabinet beside the dishwasher it would be accessable for future repairs if needed. This may be the best way to go in this situation.
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Old 12-08-2011, 04:08 PM   #7
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Re: Dishwasher In My Own Home


By the way no building inspectors in this rural area. Still want to do it good.
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Old 12-08-2011, 04:17 PM   #8
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Re: Dishwasher In My Own Home


You can vent thru the disposal if i'm not mistaken
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Old 12-08-2011, 04:19 PM   #9
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Re: Dishwasher In My Own Home


No disposal and sink is 12' away in another set of cabinets. Think of this like a dishwasher in an island with no sink in the island.
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Old 12-09-2011, 11:28 AM   #10
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Re: Dishwasher In My Own Home


Took another look and noticed that the 12" cabinet beside the dishwasher has a duct line below it in the joist bay for the hot air register. Can not reasonably move this.

The joist bays under the dishwasher are open.

I have attached a drawing. Of what I am wondering will work. Run the 3/4" line, high loop behind the dishwasher, through the floor and into a p-trap and 1&1/2" drain line over to the main stack which is 8feet away.

Here is a drawing of my idea. (hope)
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Old 12-09-2011, 11:57 AM   #11
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Re: Dishwasher In My Own Home


I realize with a bit more work I could run a re-vent.
Tie in a 1&1/2" line in the wall beside the 3" main stack. run that down and under the floor over to the dishwasher, tie in the 3/4" high loop line, then a p-trap, then into the main 3" stack.

Not sure which side of the P-trap the re-vent should tie in on, re-vent high loop P-trap or high loop p-trap re-vent (I think the second is right)

Here is a pic.

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Old 12-09-2011, 02:52 PM   #12
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Re: Dishwasher In My Own Home


Quote:
Originally Posted by Cjeff
Took another look and noticed that the 12" cabinet beside the dishwasher has a duct line below it in the joist bay for the hot air register. Can not reasonably move this.

The joist bays under the dishwasher are open.

I have attached a drawing. Of what I am wondering will work. Run the 3/4" line, high loop behind the dishwasher, through the floor and into a p-trap and 1&1/2" drain line over to the main stack which is 8feet away.

Here is a drawing of my idea. (hope)
In Wisconsin that would be illegal.
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Old 12-09-2011, 03:24 PM   #13
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Re: Dishwasher In My Own Home


I do not need air gap here. Open to any other ideas.
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Old 12-09-2011, 04:50 PM   #14
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Re: Dishwasher In My Own Home


Whats a "re-vent"? That's not in my code book. Every fixture has a vent, what you have drawn is simply a fixture vent.

The trap you have shown is a a mutated version of a running trap. Depending on room in most cases you will not be able to fit a standpipe behind the dishwasher in the opening. Measure and be sure you have clearance.
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Old 12-09-2011, 05:12 PM   #15
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Re: Dishwasher In My Own Home


re-vent must be the same term as you use for fixture vent. I have lived in 4 provinces in Canada and find that different terms are used to mean the same thing.

I had hoped to do a stand pipe as you suggested, However according to the measurements on the dishwasher there is only 3/4" at most between it and the back wall.

So will the running P-trap with the fixture vent work or should I look elsewhere?
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Old 12-09-2011, 05:26 PM   #16
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Re: Dishwasher In My Own Home


Quote:
Originally Posted by Cjeff
re-vent must be the same term as you use for fixture vent. I have lived in 4 provinces in Canada and find that different terms are used to mean the same thing.

I had hoped to do a stand pipe as you suggested, However according to the measurements on the dishwasher there is only 3/4" at most between it and the back wall.

So will the running P-trap with the fixture vent work or should I look elsewhere?
I figured that.

Well, without being at the place its hard to say. Remember though, the standpipe can go in different places. Run the hose to it.

You really don't want a running trap on a pumped discharge if you can help it. Have a labotts blue beer and re-think the location of the standpipe. I bet you will find a good spot.
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Old 12-09-2011, 05:40 PM   #17
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Re: Dishwasher In My Own Home


Quote:
Have a labotts blue beer and re-think the location of the standpipe.
I think better with a Sleeman.

Not a big fan of bland blue.
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Old 12-09-2011, 07:05 PM   #18
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Re: Dishwasher In My Own Home


Quote:
Originally Posted by Inner10

I think better with a Sleeman.

Not a big fan of bland blue.
I pulled that out of thin air.....have no idea what you meatheads drink. I almost said Moosehead but a Canadian told me years ago its a crap beer in Canada.
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Old 12-09-2011, 08:28 PM   #19
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Re: Dishwasher In My Own Home


Blue is a color, not a beer
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Old 12-09-2011, 08:36 PM   #20
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Re: Dishwasher In My Own Home


Out of curiosity what is considered the premium Canadian beer?

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