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Tapping into Old Cast Iron

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  • Tapping into Old Cast Iron

    Need recommendations. Existing cast looks to be 4 1/2" ID - 5" OD. Cant get the same size pipe in a wye. The pipes in great shape. Do I cut & insert an abs 4" wye with Fernco couplings. Or try to make a 6" pipe wye fit?

  • #2
    Re: Tapping into Old Cast Iron

    Why can't you use 5" CI fittings?
    Charlotte has no-hub as well as hub & spigot 5" fittings, including wyes from 5x2 to full 5".
    "When we build let us think we build forever. Let it not be for present delight nor for present use alone. Let it be such work that our descendants will thank us for, and let us think, as we lay stone upon stone, that a time is to come when these stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our fathers did for us."
    John Ruskin (1819 - 1900)

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    • #3
      Re: Tapping into Old Cast Iron

      Originally posted by Bob D. View Post
      Why can't you use 5" CI fittings?
      Charlotte has no-hub as well as hub & spigot 5" fittings, including wyes from 5x2 to full 5".
      I agree. No hub is your best bet.

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      • #4
        Re: Tapping into Old Cast Iron

        4.5'' id is too big for 4'' and too small for 5''. have you tried to actually hold a piece of pipe or run cloth tape around the pipe to compare the od circumfrence.

        my guess it's a 4'' cast line that should measure around 4.5'' od.

        rick.
        phoebe it is

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