Lead pipe sizes

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by rockycmt, Mar 13, 2009.

  1. rockycmt

    rockycmt New Member

    Messages:
    129
    Location:
    New York
    What are the standard lead pipe diameters around the 4 inch mark? I ask cause I have 2 pipes. One I cut and put a 4" boot to convert to PVC. The other I did not do just yet cause it looks slightly smaller that the first. did a circumference test and it is definitely smaller that the first. Seems like 2 inch cir difference. Afraid the 4" boot will be too loose. house is from the 50's

    Thanks
  2. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,339
    Location:
    Cincinnati OH
    Putting a rubber coupling on lead is not a good idea.You need to cut back to the solid pipe then go from there.Is it C.I. or copper that the lead is connected to?
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,534
    Location:
    Cave Creek, Arizona
    lead

    Lead is not a good candidater for a compression joint because it CAN compress. Even the brass ferrule that the lead is soldered to is tapered so it should also be removed and the connection made differently.
  4. cwhyu2

    cwhyu2 Consultant

    Messages:
    1,339
    Location:
    Cincinnati OH
    Forgot to mention the brass ferrule.Need to go back to the best section of pipe.
    Be it C.I. or copper.They where using DWV copper in the 50`s
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,534
    Location:
    Cave Creek, Arizona
    bend

    I doubt, and have never seen, a lead closet bend used with a copper DWV system.
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