01:00AM | 02/05/04
Member Since: 02/04/04
1 lifetime posts
I own a 1950's home in Florida that has an addition which was built in the 60's. The original home is in front and has a crawl space underneath about 3' off the ground. The "new" section was built by raising the ground with dirt and has a terazo floor.

The sewer line from the bathroom in the new section stops up constantly. It has to be cleaned out about every 6 months. I want to replace the line from the point where it comes out of the wall under the house over to where it ties into the front bathroom and then into the ground and out to the main sewer line for the city. Also from the kitchen sink over to where all 3 tie in together. All of this pipe is very old cast iron.

What I need to know is when I cut into the old pipe how do I connect the cast iron to the new PVC or Galvanized pipe, and which one of these should I use?

I have an estimate of $2000 dollars to have this all repaired and I simply can not afford that. I am going to have to do it myself. Any help would be greatly appreciated since I don't have a clue what I am doing. I am hoping that I can do all the work under the house and get the new pipe out under the wall into the yard, dig up the old pipe to the cities line and then have the plumber complete the replacement from there.

plumber Tom

03:48PM | 02/05/04
Member Since: 05/10/03
810 lifetime posts
To make the transition from cast-iron to PVC is relatively simple. Use a rubber Fernco (brand name) coupling, or a Mission (also a name brand coupling) Fernco's are all rubber and give you some room to work with. Mission bands have an interior neoprene rubber like sleeve that is shielded with a stainless band. Code officials (plumbing inspectors) usually allow you to install one shielded band underground to make the connection from the main house drain to the curb trap. It's a good idea to purchase a torque wrench rated at 60 psi. This special wrench (basically a 5/16th nut driver) will torque the bands at 60 pounds per square inch and will snap at the 60 lb. limit. This allows for proper tightening and prevents over-tightening of the bands. Post back and let us know how you make out, plumber Tom


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