Laundry room sink

[Dylan Shannon]

We built our house a couple years ago and skimped by not adding a utility sink in laundry room. I figured based on the plans and laundry location, it would be easy. Well..... they didn’t install washer and dryer where indicated in the plans...

See the photos but we essentially want to add a sink on opposite wall as the waste stack and I can’t figure out the best way to get water over to it.
I suppose I can run the sink like on outside of wall along the laundry discharge as the washer and dryer will be blocking it anyhow. Thoughts?

Would this be a good location for an AAV?
One plumber quoted me at $2,500 with me doing demo and drywall....which seems way to high.

thanks in advance.

 

[hj]

What Bozo installed the drain and water for the washer? Even a first year apprentice would do a better job than that. There is no "easy way" to do it because the drain already runs further than it should to the vent.

 

[Sponsor]

 

[Reach4]

You can do what you propose. To vent the sink, you could run the vent up to the attic and join the real venting, or put in an AAV near the sink. Use a combo (combines wye and 45 functions) and the removable AAV may be able to double as a cleanout. I am not a plumber.

The 2 inch laundry trap arm can run up to 8 ft under IPC. See the table on page 2 of https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf

 

[Dylan Shannon]

You can do what you propose. To vent the sink, you could run the vent up to the attic and join the real venting, or put in an AAV near the sink. Use a combo (combines wye and 45 functions) and the removable AAV may be able to double as a cleanout. I am not a plumber.

The 2 inch laundry trap arm can run up to 8 ft under IPC. See the table on page 2 of https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf

Hi and thanks for the replies. Been busy with other projects. Getting ready to tackle this one.

So based on the link you provided, a long a my sink vent within the defined distance of the trap. The distance downstream of it doesn’t matter? I ask because I will have around 13’ of horizontal distance from laundry trap to vertical stack. The laundry machine is 5 feet from vertical stack.

I plan on running vent to attic unless it’s to difficult to tie into existing vent to there.