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PVC to Cast iron "Speed bump"
Hello all,
I call this thread the speed bump because when I dug out my basement floor to replace an upstream section of cast iron pipe with new pvc pipe for a bathroom and to move my stack, the downstream attachemtn to the cast iron pipe is now giving me some mild trouble. The cross section of the cast iron pipe is not really 4" because of buildup on the inside wall of the pipe. It's like cholesterol deposits in your arteries if you eat too much fat :) .SO, my 4" PVC pipe is attached to a 3 to 3.5" cast iron pipe. Solids have to make it over this "speed bump" to continue down to the street. I know this is a problem because my floor drain a bit upstream of this connection collects some solids sometimes and I end up pouring a 5 gallon bucket of water with a little bleach down there to help move things along. Are the cast iron deposits something a company like rotorooter can take care of, or do I have to replace that pipe too? I remember that the section I removed had fairly tough deposits. Thanks in advance and sorry for the long winded post. Regards, Steve |
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If you have a clean out or opening where they can snake upstream of the "speed bump" then they can put on a large spade tip or a cutter tip and clean up the cast iron pipe walls. Also the cable whipping around in the pipes will help to clean the pipe walls. Afterwards flush the sewer with hot water. Good luck, Tom
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