It can then run horizontally to tie into another vent as long as it maintains a 1 4 inch per foot slope toward the drain.
Tie washer drain into sink.
Washer drain hose to utility sink.
Locate your existing washer s drain line specifically where it goes down into the floor or wall.
If the utility sink was properly installed it has its own drain.
Do not tie it into the trap.
This is where you will place the new y fitting that will separate the washer s drain from the utility sink s drain in the next.
The drain hose from the washing machine is hung on the edge of the laundry sink.
Laundry sink waste ties in below the standpipe tie in.
This install is in a basement so it would be very difficult to cut more concrete or run a separate line to the sump.
Connect the washing machine to the sink drain if.
The washing machine drain 1 5 would run horizontally along wall pick up the lavatory drain still 1 5 and wye into a 2 drain with the shower which then wyes into a 3 drain with the toilet and on to a sump.
If possible and applicable note.
But i assume from your question that sink doesn t have any drain.
Tee wye off the vent for the sink above the standpipe waste at least 42 off the floor and if sink on the left in this photo then above the laundry box.
The size of a drain line for a small bar sink.
Something like this or this but in reverse.
There are three rules.
If that s the problem then your objective will work you can tie the sink drain to the washer drain.
1 install the drain hose into an installed 2 diameter drainage stand pipe.
Other options for washing machine drainage in garage.
Do not connect it directly to a drain stand pipe unless the pipe is at least 2 inches in diameter.
This is in virginia.