To be clear this is not the vent coming from the basin.
Can a floor sink wye into top of sanitary line.
After the bend put an upward facing 3 3 2 wye 45.
Under where the toilet will be fit a long sweep 3 90 degree bend upwards.
This is the vent i was planning on tieing into for the laundry sink washer standpipe set up.
Installing a sanitary tee instead of wye or long sweep for drainage connection or back to back fittings sinks.
Roll the rubber back over itself.
Toying with drain lines might sound tough but with patience and attention to detail a beginning plumber can manage the job without too much difficulty.
The 4 stack in the photo is servicing only 2 floor drains in my garage.
This install is in a basement so it would be very difficult to cut more concrete or run a separate line to the sump.
Use no hub banded couplings on each end of the piece you have made up.
Also add a 3x3x2 wye for the sink.
Upc 904 0 size of vents.
Every single lavatory or sink should have a vent either a real vent pipe or an aav coming off the top of a sanitary tee connected at the junction between the horizontal pipe trap tailpiece and the vertical waste pipe.
The 2 serves as a vent.
Glue small pieces of pipe into each end of the san tee measure it s total length and that is how much you will cut out of the stack.
On top of this 4 san t is a bushing for the 2.
In the 3 pipe to the toilet area put in two upward facing 3 3 2 wyes for the floor drain and the bath or shower.
You can see about 7 feet up on the stack where the 4 san t ties in to pick up the floor drains.
Can i tap into this 2 line with a 2 wye and drain into it from both the sink and the washer.
No they are not the same configuration.
A 45 degree wye fitting double combo combination wye and one eighth bend branches or other approved equivalent configuration is also correct.
A sanitary combo is a combination wye 1 8 bend already made in one fitting.
The vent is what breaks the siphon as the water turns downward and goes bye bye.
How to tie into this main stack for small wet bar sink.
Approved indirect waste pipes into a floor sink or other approved type of receptor.
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.
Top 10 mistakes of dwv plumbing design.
When connecting any vertical waste drop to a horizontal run the proper way to do it is to either use a wye 1 8 bend 45 deg or a sanitary combo.
Packy ma you can cut out a section of pipe and replace it with a 3 x 1 1 2 sanitary tee.
Between the floor drain and the basin is a 2 pipe coming out of the floor that taps into the main house vent line going to the roof vent for the floor drain.