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Leaking Where the Well Lines Come Through the Basement Wall

Although the mortar seals that surround well lines in basement walls are usually long-lasting, the mortar eventually deteriorates and loosens, particularly if the lines are bumped occasionally. Mortar deterioration and other flawed seals around well lines allow moisture into basements. Aside from damaging flooring and other objects in basements, moisture helps provide ideal conditions for mold growth. While mold spores are generally innocuous, they do affect people with allergies, asthma and other respiratory ailments. Promptly repair leaks around well lines in basement walls to prevent moisture levels from rising in the basement.

Things You'll Need

  • Drop cloth
  • Safety glasses
  • Work gloves
  • Cold chisel
  • Sledgehammer
  • Wet/dry vacuum
  • Bucket
  • Trowel
  • 4 lbs. hydraulic cement
  • Latex gloves
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Instructions

    • 1

      Lay a drop cloth on the floor directly below the well line. Put on protective glasses and work gloves.

    • 2

      Remove any existing mortar from around the well line using a cold chisel and sledgehammer. Position the chisel’s tip against the mortar as you lightly tap the chisel’s flat head with the sledgehammer. Do not pound on the well lines.

    • 3

      Vacuum the space around the well line using a wet/dry vacuum. Remove any grime fragments to ensure your hydraulic cement will stick when you apply it.

    • 4

      Fill a bucket with 1 pint of 70 degree F water. Using a trowel, mix 4 lbs. of hydraulic cement into the water. Stir the cement mixture until it resembles peanut butter.

    • 5

      Put on latex gloves. Using your gloved hands, firmly pack the wet cement into the gaps around well line. Work swiftly, as hydraulic cement begins curing in three to five minutes.

    • 6

      Press the hydraulic cement firmly with the trowel to ensure no voids remain around the well line. In addition, smooth the cement with the trowel.

    • 7

      Let the hydraulic cement cure in the basement wall for 24 hours.

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Wall Repairs
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