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Old 08-16-2009, 03:22 PM   #1
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Converting utility sink to standpipe?


My washer drains directly into a utility sink. Due to pipe clogs, the stopper accidentally being left in the sink, clothes falling into the sink, etc., the utility sink has overflowed several times over the years, resulting in water damage to our wood floors. We're having the floors replaced and I want to end this situation by putting in a standpipe. At the same time, I want to tear out the utility sink so my dryer and washer can be side-by-side.

My question is: When I remove the utility sink, can I just use the existing trap for a standpipe? This would save me having to tear out the drywall. I would adjust the trap 90 degrees so it's parallel with the wall -- is this a bad idea overall?

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Old 08-16-2009, 03:31 PM   #2
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Converting utility sink to standpipe?


Yes. Use the compression fitting made for the drain hose at the top this way hose wont pop out and the pipe is sealed. They do work well :}:}

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Old 08-16-2009, 04:10 PM   #3
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Converting utility sink to standpipe?


If I understand you correctly do not use a compression fitting

Code requires an air gap connection for a washer. (Indirect waste)

Out of the wall you need a P-trap and then go verticle with a standpipe. Install the washer drain into the pipe. NOT A TIGHT CONNECTION. The pipe and trap need to be 2".
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Old 08-16-2009, 06:23 PM   #4
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Converting utility sink to standpipe?


interesting :} they put one on mine guess it may just have to have an accident and fall off :}:}
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Old 08-16-2009, 07:29 PM   #5
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Converting utility sink to standpipe?


Cabinet makers should stick to cabinets and not plumbing!
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Old 08-16-2009, 10:46 PM   #6
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Converting utility sink to standpipe?


Guess so; Next time I have a thought we will have to get your permission I guess. I do know that the Almighty Plumber does know all and no others shall speak in his presence. Met your type many times b4, not worth any more of my time
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Old 08-17-2009, 01:17 AM   #7
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Converting utility sink to standpipe?


Thanks Plumber 101, you're right, I just want to put the washer hose into the standpipe. I've never seen one "sealed" to a standpipe -- was just planning on hooking it in without a seal. I'll proceed with removing the sink and put a 2" pipe into the existing trap.

Once I do that, can you recommend an attractive or at least sturdy way to stabilize the pipe against the wall? Thanks.
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Old 08-17-2009, 11:06 AM   #8
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Converting utility sink to standpipe?


Plumber101: Just want to make it very clear to you and the 0ther 99% of the plumbers on this site that my comment to lonsplumbing was ONLY aimed at his nasty and undeserved comment. It is "plumbers?" like him that give the rest of you good folks a bad rap.
Trust me, being a cabinetmaker now does NOT tell what I did for over 20 yrs before age and health took me out of the Heavy Work dept.
I will gladly give you or any other friendly plumber more details. My "B" tank has many many many miles on it :}:}:}:}

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