main line replacement question

Discussion in 'Drain and Sewer Cleaning' started by twinsig, Oct 6, 2018.

Help Support Plumbing Forums by donating:

  1. Oct 6, 2018 #1

    twinsig

    twinsig

    twinsig

    Member

    Joined:
    Dec 16, 2017
    Messages:
    10
    Likes Received:
    2
    Location:
    ,
    Guys,
    Tomorrow I will be (begin) replacing my main line (cast iron, circa 1970) with PVC.

    Question: What would be the proper method and/or material I should use to seal the foundation penetration?

    Concrete BLOCK wall w/crawl space. No basement.

    That area usually stays a bit damp.
    I get some seepage after moderate rain.
    Gets wet along that section after heavy rain.
    No standing water (outside) after rains, has adequate run-off/drainage away from the house.
     
  2. Oct 6, 2018 #2

    journeyman

    journeyman

    journeyman

    the professional

    Joined:
    Oct 4, 2012
    Messages:
    538
    Likes Received:
    165
    Location:
    san diego, california
    Hydraulic cement
     
    Rossando likes this.
  3. Oct 6, 2018 #3

    CST Mechanical

    CST Mechanical

    CST Mechanical

    New Member

    Joined:
    Oct 6, 2018
    Messages:
    4
    Likes Received:
    0
    Location:
    Surrey
    Hydraulic Cement... Ball it up and keep packing it in until the gaps are completely sealed. It actually reacts with any ground water (any water actually) to become water tight. Great stuff. One thing I've seen guys try is spray foam! DO NOT TRY THIS!!!! It will soak up water like a sponge!
    www.coastmechanical.com
     
  4. Oct 6, 2018 #4

    Jamesplumbing06

    Jamesplumbing06

    Jamesplumbing06

    Well-Known Member

    Joined:
    Feb 24, 2016
    Messages:
    556
    Likes Received:
    111
    Location:
    ,
    I usually fill block cavity with the great stuff foam made for water barrier. The label has koi pond on it. Then fill around block with hydro cement. But hydro is pretty good stuff. But be ready and be fast. It sets up hot and fast.
     
  5. Oct 6, 2018 #5

    FishScreener

    FishScreener

    FishScreener

    Well-Known Member

    Joined:
    Aug 23, 2018
    Messages:
    183
    Likes Received:
    59
    Location:
    83467
    Non shrink grout.
     
  6. Oct 7, 2018 #6

    twinsig

    twinsig

    twinsig

    Member

    Joined:
    Dec 16, 2017
    Messages:
    10
    Likes Received:
    2
    Location:
    ,
    Not too tough of a day, still gotta do the sealer and cover up. Apparently sealing penetrations in the 70's wasn't common! There was ZERO evidence of any type of sealing/waterproofing! Just dirt since day-1!..

    Thanks for the advice
     
  7. Feb 4, 2019 #7

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    6,725
    Likes Received:
    2,128
    Location:
    ,
    I disagree with all the recommendations you have been given

    This is the correct way to make a penetration through a foundation wall

    2 stool.jpg
     
  8. Feb 5, 2019 #8

    twinsig

    twinsig

    twinsig

    Member

    Joined:
    Dec 16, 2017
    Messages:
    10
    Likes Received:
    2
    Location:
    ,
    Understood froto. But you're a bit late to the party. I just happened to get an email notification on this and thought, oh, I just did that job, then found it was my own thread!! Ha ha.
    Nice instruction though, for future user search.
     
    frodo likes this.
  9. Feb 5, 2019 #9

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    6,725
    Likes Received:
    2,128
    Location:
    ,


    I stopped of at another party before getting here, got wasted lost my keys then hooked up with some crazy ass pole dancer chick who tried to steal my wallet. After I kicked her out of the hotel room i found my keys under the bed
     
  10. Feb 5, 2019 #10

    twinsig

    twinsig

    twinsig

    Member

    Joined:
    Dec 16, 2017
    Messages:
    10
    Likes Received:
    2
    Location:
    ,
    Party On Bro!
     
  11. Feb 9, 2019 #11

    phishfood

    phishfood

    phishfood

    Moderator Staff Member Professional Supporting Member

    Joined:
    Jan 18, 2010
    Messages:
    5,739
    Likes Received:
    985
    Location:
    Orlando, FL
    My wife just read that, and says that we are not allowed to hang out together anymore.
     
  12. Feb 10, 2019 #12

    frodo

    frodo

    frodo

    Just call me Macgyver Professional Supporting Member

    Joined:
    Sep 28, 2014
    Messages:
    6,725
    Likes Received:
    2,128
    Location:
    ,
    sitting in corner.jpg
     
    phishfood likes this.

Share This Page