House settled on pipe and broke it

Discussion in 'General Plumbing Help' started by JewishBacon, May 17, 2019 at 5:22 PM.

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  1. May 17, 2019 at 5:22 PM #1

    JewishBacon

    JewishBacon

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    After doing some digging in regards to my last post, I found the crack in my slab foundation leads right to a cast iron pipe from my kitchen sink ( that does not hook up to the rest of the septic plumbing). The pipe has a crack exterior to the foundation and water rushes out of it when I use the sink. What is the easiest way to patch/replace this?
     

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  2. May 17, 2019 at 6:41 PM #2

    geoffhazel

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    If water is rushing out of that crack when you use the sink, I'm a little suspicious of what's IN the pipe that may be blocking it from draining properly. Does the crack go all the way around he circumference of the line? If so then perhaps that's just what happens, but if it's a hole on the top, I suspect some clogging. As far as repair goes - it's possible (but slow) to cut cast iron with a hacksaw or sawzall and then patch it with some PVC and fernco no-hub couplings.
     
  3. May 17, 2019 at 6:43 PM #3

    voletl

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    They sell special cast iron sawzall blades

    Do not use ferncos uses fully sheilded couplings
     
  4. May 17, 2019 at 8:54 PM #4

    Diehard

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    What are you saying here?
     
  5. May 17, 2019 at 11:06 PM #5

    voletl

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    Exactly what I said...

    Any homeowner or novice is going to walk into Home Depot go down the plumbing aisle see fernco as in this POS.

    Where you should be using a fully shielded coupling like in this other picture.
    Those crappy fernco couplings will dip will move left and right will not fully support the pipe.

    I also understand that fernco makes fully shielded couplings but when people refer to a fernco coupling the Home Depot special is the one people go for

    If you need any other explanation just let me know Screenshot_20190517-180140.jpeg Screenshot_20190517-180236.jpeg
     
  6. May 17, 2019 at 11:43 PM #6

    frodo

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    RUT ROHHHH

    OK..Here is what ya gotta do.
    FIRST
    Clean the top of the old pipe, Then set a level on the CLEAN pipe
    if it shows fall in the correct direction. then you are good to proceed to the next step
    Next step
    Use a saws all with a bi metal blade and cut the damaged section out
    You can use the fernco, That is pictured above as NOT LEGAL to use
    IT IS legal to use underground in the horizontal position, It is NOT LEGAL to use above ground

    after you have cut the pipe, dig out and discard, ALL saturated wet soil, this will get rid of disease and the funk smell, replace with SAND

    OK
    IF the level shows that your house has indeed settled and the pipe does not have fall
    You gots some tunneling to do.
    Start digging back to the sink. NOT towards the sewer
    dig back and check with a level. till you find the belly in the pipe
    cut out from belly to the bad spot. and replace
    dig out all wet dirt, replace with sand

    WHY SAND?
    sand self compacts if you wet it. you can get 95--100% compaction with sand with out compacting

    you DO want the soil under your house compacted, or face slab cracks and shifting
     
    Last edited: May 18, 2019 at 2:38 PM
  7. May 18, 2019 at 1:06 AM #7

    Diehard

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    Sorry, it sounds like you took offense to the fact that I couldn't understand exactly what you meant. It may be perfectly clear to you as you know what you were thinking.

    No offense as I was thinking Fernco DOES make a shielded coupling.

    So I guess what you're saying is people will automatically use a Home Depot special that is not shielded.:confused:
    I think just saying, be sure to use a shielded coupling would have been understood better.

    Again, sorry if I ruffled your feathers. That was not the intention. Just clarification.
     
  8. May 18, 2019 at 1:09 AM #8

    voletl

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    No no no my mistake I don't mean to come off as an a hole
     
  9. May 18, 2019 at 1:12 AM #9

    Diehard

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  10. May 18, 2019 at 2:29 PM #10

    Jim Jensen

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    THANKS for this thread, I have a similar issue, adding a cleanout to 4" ci, just as it comes out from under pier and beam house, and will go to local plumbing supply house (Ferguson) and get fully-shielded 4" coupling, instead of the cheapy small shielded one I had gotten from Home Depot --- only has 2 hose clamps, and is only about 3" long....not nearly as beefy as the one in the pic above.
     
  11. May 18, 2019 at 2:32 PM #11

    frodo

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    I have interacted with your for a few years
    you have never come off as an a hole , not even close
     
  12. May 18, 2019 at 2:50 PM #12

    frodo

    frodo

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    Voletl
    those pos fernco's are legal when used under the ground in the horizontal position
    they are not legal above ground, because of the problems that you stated
    The reason is that a pipe is [in theory] 100% supported underground and therefore can not move.
    if you look in the IPC under drains, it references a ASTM number . if you go down the rabbit hole after that number. It says it is legal
    My problem with using a shielded coupling underground is the debth of the coupling is 1''
    I am not liking that, altho I do use them underground and seal them with some black swan
    no hub sealer, that crap is so sticky you have to ruin the rubber to get it off.
    WHY the damn code references a astm # instead of just coming out with the info is beyond me, but that is fodder for a different discussion
     
  13. May 18, 2019 at 3:01 PM #13

    voletl

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    Anything I put underground that needs a coupling it gets a husky to tell you the truth any coupling I use is a husky
     
  14. May 18, 2019 at 4:35 PM #14

    frodo

    frodo

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    I have never used a Husky, I am a Proflex man
     
  15. May 18, 2019 at 8:26 PM #15

    voletl

    voletl

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    very good bands standard husky comes with four clamps thick band
     
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  16. May 18, 2019 at 9:04 PM #16

    frodo

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    then i have used them. just did know the name
     

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