(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 4 of 4

Thread: What caulk to use to seal water pipe through basement wall

  1. #1
    DIY Junior Member goshenplumber's Avatar
    Join Date
    Mar 2007
    Location
    WV
    Posts
    23

    Default What caulk to use to seal water pipe through basement wall

    I need caulk or another material recommendation.

    My 1 inch plastic water pipe comes through my basement wall inside a plastic sleeve. Where the pipe comes through the wall, the space between the inside of the sleeve and the outside of the pipe is caulked with some kind of caulk (silicone?) to prevent ground water from coming through the sleeve. The seal between the caulk and pipe is broken due to recent plumbing work & some ground water is dripping between sleeve & pipe due to recent heavy rains. Once this dries, I need to replace this caulk with the best material I can buy.

    What should I use? 100% silicon caulk similar to GE Silicone II? Silicone Rubber? Plumbers Goop? Or something else?

  2. #2
    DIY Junior Member goshenplumber's Avatar
    Join Date
    Mar 2007
    Location
    WV
    Posts
    23

    Default

    Here is an image of what I described in this post.
    Name:  Bsement water line.JPG
Views: 428
Size:  77.6 KB

  3. #3
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,202
    Blog Entries
    1

    Default

    I would be thinking 100% Silicone on that.
    Too bad it can't be sealed from the outside. Water pushing up against the foundation is hard to seal.
    Sometimes gravel to drain the water away from the foundation is nice.

  4. #4
    DIY Junior Member goshenplumber's Avatar
    Join Date
    Mar 2007
    Location
    WV
    Posts
    23

    Default Best way to remove old silicone caulk?

    Quote Originally Posted by Terry View Post
    I would be thinking 100% Silicone on that.
    Too bad it can't be sealed from the outside. Water pushing up against the foundation is hard to seal.
    Sometimes gravel to drain the water away from the foundation is nice.
    I agree -- too bad the past homeowners did not seal the sleeve from the outside. But there appears to be very little water in the sleeve. So far about 7 ounces has drained out and the drip is slowing, so I am probably seeing years of moisture accumulation in the sleeve. There is a gravel drain field in front of the porch that drains away most of the water so at least that was done right.

    I will use 100% silicone (GE Silicone II) to replace the old silicone.

    Terry, do you have any recommendation on how to remove the old silicone without damaging the 1" plastic water pipe? I was going to use a small screwdriver to cut into the silicone and pull off pieces with a needle nose pliers. Is there a better way?

    Thanks for the help. Wish I lived in your area so that I could hire you to do my plumbing jobs.

Similar Threads

  1. Sewer pipe through basement wall seal question
    By wallygater in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 2
    Last Post: 09-01-2011, 04:51 PM
  2. Cast iron pipe leaking in basement wall
    By sesquialtera in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 3
    Last Post: 04-17-2009, 09:43 PM
  3. Installing exterior water pipe for hose through basement wall
    By homeowner1 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 4
    Last Post: 07-24-2006, 11:52 AM
  4. Help me seal this basement pipe
    By the_redhawk in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 3
    Last Post: 04-19-2006, 06:10 PM
  5. Sewer Pipe Leak at Joint in Basement Wall
    By jklinken in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 4
    Last Post: 08-18-2005, 05:58 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •