How to Repair an Inground Swimming Pool


An inground pool is a pleasant addition to a home. It can provide enjoyment and relaxation for many years if well cared for. By far one of the most common repairs that an indoor pool needs is the repair of cracks along the bottom of the pool. While there are products available to repair cracks temporarily without draining the pool, the more permanent fix does require you to drain the pool to fix the cracks. In no time at all, your inground pool will be repaired and ready for use.

Things You'll Need

  • Wire brush
  • Grinder with a diamond blade
  • Pool patch
  • Silicone caulk
  • Tape
  • Sponge
  • Drain the pool. If you are in swimming season and do not want to drain it, you can use temporary patches until you can drain it and do the proper repair.

  • Brush the crack and the area around it. Make sure there is no debris in the crack or around the general area.

  • Undercut the crack with your grinder. Undercutting means that you will cut from the outside of the crack and away from the crack as you cut down. Perform this cut on both sides of the crack. The cut into the floor should be wedge shaped with the bottom being wider than the top.

  • Fill the wedge with caulk. Lay enough caulk to fill it up to 1/4 inch away from the top.

  • Mix your patch compound according to the directions. Make sure the crack and surrounding area is damp. Fill the remaining 1/4 of the crack with the compound. Use the trowel to push the compound down into the crack.

  • Push the pool patch down on top of the compound, and use a damp sponge to smooth it down over the compound. Make sure the area stays moist for at least 24 hours so that it does not dry to quickly, or it may crack.

Tips & Warnings

  • Wear safety goggles when using a grinder.
  • Watch the areas that you repair. If it seems to crack again, contact a professional to make sure your pool is not sinking or settling.

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