Greetings,
I am renovating a second floor bathroom and, as part of this job, recently had to replace a sevaral foot section of the old cast-iron stack with PVC to tie in the new toilet location.
My question relates to my longer term renovation plans for the house. Specifically, I plan to put in a powder room on the first floor and tie the fixtures into the same cast-iron stack. This will likely involve another PVC sleeve in the stack to accommodate the new drains/vents.
Question: Is it ok weight wise to have two PVC sections in an existing cast-iron stack, or will this make it unstable where I have cast iron sections sitting above the PVC? I'm particularly concerned about the portion of the stack that sits above the PVC connection on the 2nd floor, as it is heavy cast-iron running another 8 feet up to the roof.
For background, the house is 100 years old, but the existing cast iron stack is still in very good condition.
Thanks !
I am renovating a second floor bathroom and, as part of this job, recently had to replace a sevaral foot section of the old cast-iron stack with PVC to tie in the new toilet location.
My question relates to my longer term renovation plans for the house. Specifically, I plan to put in a powder room on the first floor and tie the fixtures into the same cast-iron stack. This will likely involve another PVC sleeve in the stack to accommodate the new drains/vents.
Question: Is it ok weight wise to have two PVC sections in an existing cast-iron stack, or will this make it unstable where I have cast iron sections sitting above the PVC? I'm particularly concerned about the portion of the stack that sits above the PVC connection on the 2nd floor, as it is heavy cast-iron running another 8 feet up to the roof.
For background, the house is 100 years old, but the existing cast iron stack is still in very good condition.
Thanks !