How to Repair an Empty Concrete Swimming Pool

Written by joshua bailey
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One negative thing about having a concrete swimming pool is concerete tends to crack and chip fairly easily. When this happens, you must immediately repair the area to prevent the damage from spreading. With a simple cement mixture and the right supplies, you can fix the damaged pool concrete on your own.

Skill level:
Moderately Challenging

Things you need

  • Wire brush
  • Safety goggles
  • Face mask
  • Grinder
  • Diamond blade
  • Soft rags
  • Hose and water
  • Caulk
  • Portland cement
  • White sand
  • Bucket
  • Dowel
  • Putty knife
  • Trowel

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  1. 1

    Remove as much dirt and debris as possible from the area you will be repairing. Put on your safety gear and keep it on until the project is complete.

  2. 2

    Widen and deepen the concrete crack, using the grinder and a diamond blade. Turn the grinder on low to get a feel for it, then turn it up higher as you move it back and forth and up and down to increase the size of the damaged area. This will allow the fresh concrete patch to fill and bond more easily with the existing concrete.

  3. 3

    Hose down the area. Wipe away the concrete dust and allow the crack to dry slightly. As long as the concrete is still damp, it will not pull the moisture out of the concrete mix being added.

  4. 4

    Apply a thin line of caulk around the inside of the crack, about 1/4 inch from the opening. The caulk will act as a bonding agent between the existing and new concrete.

  5. 5

    Place 3 parts Portland cement, 2 parts sand and 1 part water in the bucket. Stir the mixture with a dowel.

  6. 6

    Push the concrete mix inside the crack with the putty knife. Force the concrete into the crack's deep crevices.

  7. 7

    Trowel over the top of the patched area to even out the new concrete and make it flush with the old concrete.

  8. 8

    Allow the concrete patch to dry for 24 hours.

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