Hard buildup in cast iron drain pipe

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by STurner, Mar 18, 2017.

  1. STurner

    STurner New Member

    Joined:
    Mar 6, 2017
    Location:
    Kentucky
    I have started addressing a long-clogged kitchen sink drain that has led me below the floor to the crawlspace and to a cast iron drain pipe that was cracked part way down. I noticed it was filled with a hard brownish material that was impenetrable by auger so I decided to cut off the cracked section, which was about 6-8 inches of pipe. Even below that, right before the elbow, the pipe is filled with a very hard grayish-brown, seemingly metallic substance. I tried drilling the center but even that was difficult. Does anybody have any experience here or know what I am looking at? Thanks, Steve
     

    Attached Files:

    Last edited by a moderator: Mar 19, 2017
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    I've seen where people have dumped tile grout down a sink before. Not something that should ever be done.
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. Smooky

    Smooky In the Trades

    Joined:
    Apr 4, 2011
    Location:
    North Carolina
    Probably cement grout, mortar or some type of epoxy that someone poured down the sink and it set up hard as a rock.
     
Similar Threads: Hard buildup
Forum Title Date
Plumbing Forum, Professional & DIY Advice Having a hard water spigot and a soft water spigot? Am I Crazy? Nov 26, 2020
Plumbing Forum, Professional & DIY Advice How to remove kitchen faucet with this type of undercounter mounting hardware?? Nov 14, 2020
Plumbing Forum, Professional & DIY Advice Possible water leak damaging hardwood Oct 3, 2020
Plumbing Forum, Professional & DIY Advice Drain pipe blocked with hard debris Sep 24, 2020
Plumbing Forum, Professional & DIY Advice Why are solid brass fht hose ends so hard to find now? Only aluminum junk now. Corrosion Sep 2, 2020

Share This Page