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Author:
a320driver (MI)
Hello,
My house was built in 1970 and the utility sink's trap drains into a 2 inch copper pipe cemented into the slab. The washing machine drains into the utility sink. I am wanting to finish the room and rough in the drain for the washing machine and new sink. All the pictures I see have the washing machine trap and a connection to the main vent. There is no vent anywhere in the utility room.
If I wanted to bring it up to code, I assume I would need to install a vent and run it three floors up to the roof. If I just wanted to install a trap for the washing machine and run that to the current floor drain to share with the utility sink what kind of issues might I have?
As it stands, the utility sink fills about 1/2 way but drains ok. I would think my setup would be fairly common in older homes, but I can not find any info with this specific issue.
Any suggestions will help and I can supply some photos if necessary.
Thank you,
Chris
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Author:
packy (MA)
what do you mean that you want to rough in a drain for the new sink and washing machine?
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Author:
a320driver (MI)
Sorry that is not clear. What I mean is rather than an exterior hose running to the utility sink to drain, I would install a washing machine outlet box and attach water lines and drain plumbing then finish the wall with drywall.
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Author:
packy (MA)
if you are going to use the 2" copper as a drain for the washing machine box and that drain is not taking water as fast as it should, you need to correct that (if it is possible). the washer standpipe will overflow if the water can't drain fast enough.
that drain could go into a dry well outside somewhere?
as for a vent, if you want to bring it all up to code, you will need a vent.
also, around here we are not allowed to drain into a dry well.
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Author:
a320driver (MI)
I am on a septic system so I believe the utility sink drain connects with the main somewhere beneath the slab.
Is the purpose of the stand pipe to collect water discharge allowing for the drain to catch up? Can I make it larger than normal? Or could I work it so if the drain isn't keeping up with the discharge it backs up into the utility sink?
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Author:
hj (AZ)
You could have a vent and trap under the floor.
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Author:
a320driver (MI)
If there is a trap and vent beneath the floor, then I should have no issues?
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Author:
packy (MA)
I believe my friend from AZ means it is possible you already have a vented trap under the floor.
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Author:
hj (AZ)
You MAY have issues, but they would not be because you don't have a vent or trap.
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