Waste pipe in basement

[Octavian]

Hi,
I am planning to add a second floor to a ranch house.
In basement under the kitchen is this waste pipe, 2 inch from sync and connects to what appears to be a 4 or inch floor cast iron pipe.
Thinking to position a bathroom at the second floor over the kitchen and run a 4 inch drain from attic to basement.
Is this ok? Can this pipe accept a waste pipe from bathroom at 2nd floor and kitchen at first floor?

How to connect PVC to cast iron?

Thanks

 

[Reach4]

How to connect PVC to cast iron?

Search past posts, using the search box above, for donut spelled that way.

 

[Sponsor]

 

[Sylvan]

It is easy to burn out the lead from the 4" hub and pack oakum 1" from the top of the hub and pour 4 LBS of molten lead (1 pound per inch)

Place small No hub cast iron pipe in the hub after removing the old lead and reducer and then install a clean at the base which the original installer forgot to do.

A cleanout is required every 100 feet, every change of direction greater than 45 deg and at the base of each soil, waste or leader line stack

 

[Terry]

You can also use a 3" waste line for the bathroom. I normally only use 4" when the 4th toilet is added.

 

[Octavian]

Super - Thank you