How to Repair a Swimming Pool


Swimming pools can be a wonderful home getaway during those hot summers. Most pools, typically in-ground, are made of plaster-lined gunite or concrete. It is possible, however, for the plaster to crack and chip over time due to outside stress and pressure on the pool. The important thing is to repair the damage as soon as you notice it before it gets worse.

Things You'll Need

  • Heavy duty gloves
  • Safety goggles
  • Face mask
  • Diamond blade
  • Grinder
  • Extension cord
  • Hose and water
  • Caulk
  • Portland cement
  • White sand
  • Bucket
  • Wooden dowel
  • Acrylic bonding agent
  • Measuring spoons
  • Putty knife
  • Trowel
  • Put on your safety gear before draining the pool. Only drain the pool if the damage is located below the lower half of the wall. You can drain it halfway if the damage is located above the lower half. Remove the hydrostatic plugs to let the water drain out normally.

  • Carefully attach the blade to the grinder and then plug it in. Use an extension cord if necessary.

  • Begin to widen and deepen the crack. Place the grinder blade in the crack, turn the grinder on low and begin to chip away at the concrete. The hole should be a few inches wide and deep for easiest repair. Enlarging the crack will allow for the fresh cement to fill the hole better and to harden properly.

  • Brush away the concrete dust with your gloves and then pour water on the hole with the hose.

  • Combine the materials needed to make the fresh compound. The ratio needs to be 2 parts sand and 3 parts Portland cement, adding water in small amounts. Add an acrylic bonding agent. The mix should spread like peanut butter.

  • Use the putty knife as your scooping and hole-filling tool. Make sure the cement is overflowing so you can pat the cement down.

  • Push the compound into the hole with the trowel, and then use the edge of the trowel to remove any excess cement.

  • Allow 48 hours to cure.

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  • Photo Credit Swimming Pool image by PinkSkyPhotos from
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