How Do You Fix a Crack in an Inground Pool?

Inground Pool

It can be normal to panic a little bit when you find a crack in your inground pool however, it’s not worth stressing yourself out over. Fortunately, repairing a crack on your own is completely doable. That being said, if your crack has led to a larger issue, you may have to call in backup. Cracks do have the potential to lead to more serious issues but if you catch it quickly, you should be able to patch it before it progresses.

Why Do Pools Crack?

There are a variety of reasons a inground pool might crack. Here are some common culprits:

  • Supporting Structure Issues: Small cracks on the surface can indicate problems with the underlying structure. If the structure shrinks or flexes, it can put stress on the pool and lead to cracking. This can happen due to improper soil compaction during construction or settlement over time.

  • Environmental Factors: Finishing a concrete pool on an extremely hot or dry day can increase the risk of cracking as the materials cure unevenly.

Repairing Inground Pool Cracks by Material

The way you fix a inground pool crack depends on the type of pool material:

Concrete Pool Cracks

  1. Drain and Clean: Empty the pool and thoroughly clean the crack with an acid wash to remove any dirt or debris that might hinder the repair.

  2. Patching the Crack: Prepare a patching mixture using one-third Portland cement, two-thirds white sand, an acrylic bonding agent, and water. Mix it to a paste consistency and add dye if necessary to match the existing plaster color. Apply the mixture with a trowel, ensuring good adhesion.

  3. Smoothing and Curing: Once the patch dries, smooth out any rough areas with the trowel while the pool remains empty. Allow the patch to fully cure and harden underwater.

Fiberglass Pool Cracks

Fiberglass pool crack repair kits are readily available. Here’s the process:

  1. Drain and Prepare the Area: Drain the pool until the water level is below the crack. Use a diamond-bladed saw to cut a clean V-shaped groove around the crack to create a good bonding surface for the filler.

  2. Leak Repair (if necessary): If the crack is leaking, use hydraulic cement to seal the area before proceeding.

  3. Applying Fillers: Apply a bonding coat and allow it to dry until tacky. Then, fill the groove with polyester putty and smooth it out. After the putty sets, sand it for a smooth finish.

  4. Fiberglass Reinforcement: Apply a layer of gelcoat, fiberglass cloth, and another layer of gelcoat. Finish with a topcoat and sand until smooth.

Tile Pool Cracks

Epoxy putty is a great solution for fixing cracks in pool tiles or equipment.

  1. Apply and Smooth: Mix the epoxy putty and apply it to the crack within 20 minutes. Fill any gaps and smooth them out, slightly overlapping the crack.

  2. Curing and Finishing: Epoxy putty cures underwater in about 24 hours. You can then sand any uneven areas to create a smooth surface.

Vinyl Liner Cracks

Vinyl liner cracks can be addressed using a vinyl patch kit.

  1. Patch Selection: Choose a patch that’s at least half an inch larger than the crack or hole.

  2. Patch Application: Apply the patch according to the manufacturer’s instructions, ensuring proper adhesion.

Additional Tips: Inground Pool

By understanding the causes of pool cracks and the appropriate repair methods for different materials, you can keep your pool in top condition for years to come.

Do you need help fixing your Inground Pool?

Fixing a crack in your pool on your own is completely doable, however, it’s always best to consult an expert. If done incorrectly, you may run the risk of having to do a much larger and more costly repair in the future.