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Old 01-28-2016, 03:13 PM   #1
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Need Help With Adding Sink Next To Washer, Which Overflows Kitchen Sink


We have been having a problem with the washer flooding into our kitchen sink after it drains for a while. It's just a little bit, but it peeks up through the kitchen drain. I ripped the drywall off behind our washer a year or so ago after we had a flood from the washer. I ran a large motorized snake throughout the main drain of the house and it didn't find anything.

Last week, our high efficiency furnace's (located in the attic) condensate drain froze from outside and went up the pipe, all of the way to the furnace. Luckily, the furnace had a safety shut down switch for a situation like this. I know that these units should not be installed in an attic space, but the guy who lived here before us put it together. All of the lines are insulated really well, but since an icicle formed on the outside and moved it's way up the pipe, it insulation failed (according the HVAC tech). I currently have a temporary vinyl hose connected to the furnace and draining into the garage into a bucket. I want to maybe install a utility sink next to the washer and dryer. I would then rebuild the condensate drain and run it through the ceiling and into the sink itself to drain. This will eliminate any further freezing, I hope.

I attached an image of the drain behind my washer and dryer. There is an odd vent connected to the pipe coming down from the washer drain and a solid vent pipe (on the right) going up through the roof (it's not clogged from what I could see from the rooftop).

Does anyone have any other ideas for what to do with the condensate drain or ideas about how I would go about running a drain from the utility sink to the main drain, without causing any further issues. Maybe I should rebuild the drain system behind the washer with PVC pipe? The double vent seems odd to me. I know nothing about plumbing though so there is that. haha

I'm wondering if it would be better to just put the utility sink in the garage, to the right of the washer drain. I used a an image that I found on this forum and edited it to maybe work for my situation. Let me know what you think.

Thanks so much for your time!
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Old 01-28-2016, 03:14 PM   #2
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The current setup with garage future location of sink:



There is also room to the right of the washer to put a utility sink, but I'm not sure how to run the sink drain, without bothering the washer drain.

Any idea of how I could install the sink. Let me know if this is way off for me.

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Old 01-28-2016, 03:18 PM   #3
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what the heck is that in the 2nd picture? who plumbed that disaster?
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Old 01-28-2016, 03:22 PM   #4
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Haha it's a crappy Photoshop job by me. I'm a moron when it comes to plumbing. I'm trying to learn. Here is the original photo.



i just wasn't sure if I could fit that vent on the left side with my configuration.
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Old 01-28-2016, 03:23 PM   #5
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its already roughed out for a sink..is that what you have now?
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Old 01-28-2016, 03:25 PM   #6
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This is what I have right now.

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Old 01-28-2016, 03:26 PM   #7
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ok, you were confusing the hell outa me..lol
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Old 01-28-2016, 03:26 PM   #8
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so you just want to add a slop sink to this?
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Old 01-28-2016, 03:27 PM   #9
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I want to either put a sink in the garage, behind the washer or on the opposite side of the wall, to the right of the washer.

option 1



option 2

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Old 01-28-2016, 03:28 PM   #10
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Quote:
Originally Posted by ShtRnsdownhill View Post
so you just want to add a slop sink to this?
Yeah, just a simple utility sink. I'm going to run my condensate drain into the sink.
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Old 01-28-2016, 03:30 PM   #11
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ok, easy...cut the fitting that the washer is draining in now, just above the cleanout, get a double cross ty and clamp it in place of that T fitting, hook up the washer drain and you will now have the same opening on the other side to run your sink, and both are vented by the common vent out the top of the fitting..then run your water lines..
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Old 01-28-2016, 03:31 PM   #12
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it should be a 2 inch double cross ty..
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Old 01-28-2016, 03:40 PM   #13
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Quote:
Originally Posted by ShtRnsdownhill View Post
ok, easy...cut the fitting that the washer is draining in now, just above the cleanout, get a double cross ty and clamp it in place of that T fitting, hook up the washer drain and you will now have the same opening on the other side to run your sink, and both are vented by the common vent out the top of the fitting..then run your water lines..
Excellent. I can do that. I appreciate the quick response friend. You rock!

I plan on putting a new 2" line to the washer and a new drainage box. I think the pipe going from the box to the main drain is currently 1 3/4" or something around there. It was installed in the 50s, I'd assume.
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Old 01-28-2016, 03:52 PM   #14
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Do you recommend using PVC or ABS?

Charlotte Pipe 2-in dia PVC Double Sanitary Tee Fitting


Last edited by JustinRampage; 01-28-2016 at 04:18 PM.
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Old 01-28-2016, 06:28 PM   #15
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What does that pipe go to that connects into the washer box?

You could just run it up for the furnace condensate. It's not a vent. Unless New york plumbers always vent the inlet side of the trap..

Last edited by Ghostmaker; 01-28-2016 at 06:31 PM.
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