Cistern masonry repair/resealing

Discussion in 'Remodel Forum & Blog' started by Sign Man, Sep 14, 2008.

  1. Sign Man

    Sign Man New Member

    Aug 25, 2008
    I have a pair of brick cisterns & they seem to be leaking. I can fill them to the top but they bleed back down & lose about a foot of water level. This leads me to the obvious conclusion that there are some bad masonry joints at that level. Question is, is there any type of spray-on sealant which I could get in there & apply after draining the cistern or should I just resign myself to the fact that I need to get down in there & do it the hard way & pack some hydro seal mortar into the joints? Anyone ever deal with a similar situation?
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    Are these water storage cisterns? If so you may have to tuckpoint or mortar coat them with a trowel
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  4. Sign Man

    Sign Man New Member

    Aug 25, 2008
    Yes, they are rainwater storage.
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Remodel Forum & Blog masonry sealant Sep 28, 2010

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