I need some advice on replacing my cast main sewer pipelines with PVC piping. My plumbing is in a crawl space, so I have some concerns about possible leaks years down the road.
I would like to know:
1) Would it not be best if a plumber replaced my cast pipe with new cast pipe versus using PVC?
2) What is the best way to connect new PVC to the old cast iron main sewer line pipes? I my pipes are 4 or 5 inches in diameter and Iím concerned about leaks in the crawl space that I may never see.
3) [COLOR=Red]When using rubber no-hub connectors, what is their life expectancy and reliability. For example, will expansion cause the connection to come apart?
4) What would be best when replacing the cast pipe:
a) Bring the PVC pipe all the way outside through my foundation wall and avoid any inside connection?
b) Or use some type of non-rubber connector to make connections that must be done.
5) I have a 2-inch cast iron drainpipe From the laundry room) that must also be connected. What is the [COLOR=Red]best way to connect new PVC to the this 2 inch cast pipe?
6) My existing cast pipes are on the ground supported by 3 bricks every 5 feet or so. What is the best practice...is it hang the new PVC pipes or support them to the floor? What are the best quality pipe hangers that plumberís would use?
7) Should I have an access drain installed outside of the foundation wall.