Thanks to everyone who contributes to this awesome resource!
I'm rebuilding a rotten 2" cast iron kitchen waste stack. It was vented to the roof by a 1 1/2" lead pipe, but everything from the sink trap down to the building main needs replacement. It connected to the building main (4" cast iron) below the basement floor; at this intersection is a 3" floor drain for the basement; there are two water heaters, a washing machine, and a boiler nearby.
The vertical stack for the bathroom is about 5 feet upstream of this location, and the street is about 15 feet downstream.
I'd appreciate advice on the proper sequence of fittings from the 4" main below the basement floor up to the 1 1/2" kitchen vent. In between, there is a 3" basement floor drain, a 2" inlet for the washing machine, and a 2" inlet for a kitchen sink + dishwasher
This is the sequence I'm thinking of, starting at the main and going up:
Below basement floor
1. 4" wye + 45 degrees to vertical
2. San-tee inlet for 3" floor drain
Above basement floor
3. 4" cleanout
4. San-tee inlet for 2" washing machine
5. Transition to 2"
6. San-tee inlet for 2" kitchen sink w/dishwasher
7. Transition to 1 1/2" vent
I'm concerned that a 4" pipe rising from the basement floor and then transitioning to 2" just won't look right or be correct. I appreciate everyone's advice. Thanks!