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  1. #1
    Join Date
    Mar 2010
    Location
    Arlington, MA
    Posts
    1

    Default capped cast iron drain at sump bottom

    My house was built in 1959. There is a cast iron drain in the bottom my sump with a brass cap. Can I uncap the drain to let the sump water flow out? Is this ok to do? Also, the brass cap is so tight I cant budge it? Any suggestions on how to loosen the cap?

  2. #2
    Join Date
    Mar 2010
    Posts
    3

    Default Re: capped cast iron drain at sump bottom

    I have a similar cap on a pipe leading out of my sump pit, and have been wondering the same thing -- why would this be capped?

  3. #3
    Join Date
    Feb 2011
    Posts
    2

    Default Re: capped cast iron drain at sump bottom

    Is it possible that it's a cleanout (ie: access for a snake/rooter if the pipe plugs on the way out to the street)? That would be my first guess. In that case, I'd say that if you do open it, you're going to get sewer gas flowing unchecked into the house.

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