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Old 04-14-2013, 01:54 PM   #1
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Ideas for adding a utility sink


Howdy,

I came across this utility sink for a good price so I snapped it up. What I'm a little fuzzy on is how to make it work. Ideally, I'd find some way to utilize the washing machine's water supply and drain. I'm afraid if mounted at the same height as the washer/dryer, the drain at the bottom will be lower than the existing laundry drain. I have seen utility sink pumps (not cheap, but eh... if it makes it work, why not?) for situations like this. I've just recently jumped into the home ownership game, so what's acceptable plumbing practices and what's not is new to me. Can an outlet from the sink pump feed into the same drain pipe as the washer? If not, how would you do this?

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Old 04-14-2013, 02:26 PM   #2
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Ideas for adding a utility sink


Here would be a simple way but now the washer would drain via the sink- sink would be located where the washer is now so they would need to shift to the left or right.
Cut a 2x1.5" san tee into the stack. Extend 1.5" horizontally and 90 out the wall at your desired location. Also use a combination wye to tie into the vent.
The existing wye and p trap needs to be eliminated
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Old 04-14-2013, 02:41 PM   #3
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Ideas for adding a utility sink


Thanks, I'd rather not drain the washer into the sink though. It's not pretty and it means I can't use the sink for something else while the washer runs.
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Old 04-14-2013, 02:47 PM   #4
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Ideas for adding a utility sink


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Thanks, I'd rather not drain the washer into the sink though. It's not pretty and it means I can't use the sink for something else while the washer runs.
I think you miss understood what he ment. Instead of having the sink tie into the washers drain line you would hook up the sink and tap into the sinks drain for the washer. Not hang the washers drain hose in the sink and let it drain that way. But you could just cut a t into the stack close to the floor and bring it over.
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Old 04-14-2013, 03:25 PM   #5
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Ideas for adding a utility sink


#7 is the stub out for the sink, the washer standpipe is above #9. This setup assumes all venting above fitting #5. No other upper floor fixtures are draining into the stack.
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Old 04-14-2013, 03:59 PM   #6
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Ideas for adding a utility sink


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#7 is the stub out for the sink, the washer standpipe is above #9. This setup assumes all venting above fitting #5. No other upper floor fixtures are draining into the stack.
So the P-trap from the sink would just go directly into #7, no pump required... I wonder if there's enough room to just do that without altering the existing washer drain.
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Old 04-14-2013, 04:57 PM   #7
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Ideas for adding a utility sink


where is this tying into??
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Old 04-14-2013, 08:13 PM   #8
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Ideas for adding a utility sink


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where is this tying into??
To explain my pic better... the big vertical pipe at right comes from the bathrooms (two full baths) and at the floor elbows through the concrete wall to go to the septic tank. The pipe coming off that and going straight up in the middle comes from the kitchen (dishwasher and sink).

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