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Ask the Pool Experts: How to Repair Cracks in a Fiberglass Pool

If you’ve noticed them spread through an area, you may wonder how to repair cracks in a fiberglass pool. Once the pool covers come off and you get ready for fun in the sun, it’s important to thoroughly check for any damages before filling it with water. Regular maintenance goes a long way to preventing problems. But, if problems like cracking do still occur, there are some steps you can take to help repair and even prevent them in the future.

How Do Fiberglass Pool Cracks Happen?

Fiberglass pools can last years without any signs of damage. So, how do fiberglass pool cracks happen? A cracked fiberglass pool can point to some other outstanding issues, so it’s important to understand where they come from and how to fix them.

Generally, the most common cause of cracking in fiberglass pools comes from pressure imbalances. When this happens, pressure exceeds the flexibility of the pool’s gel coating. This can then develop cracks in the gel coating, or even cause bulging pool walls.

Some other instances where small cracks like spider cracks can form include improper installation or blunt force impacts. Cracking on a small scale may not seem like an immediate concern, but they can compromise the integrity of the pool’s structure over time. This can then lead to more extensive damage.

Steps to Repairing a Cracked Fiberglass Pool

1. Drain the Pool for Inspection

Safely drain the pool so that you can more easily reach any problem areas. Use the appropriate pump and ensure the area is completely dry. Then inspect the pool to check for any areas in need of crack repair.

2. Lightly Sand the Damaged Area

The next step in the repair process is gently sanding the area. A rough surface from cracking makes it harder to address, so creating a flatter surface can help the repair to better take.

3. Apply the Appropriate Bond Coat

Once sanded down, you can apply a bond coat to ensure that the adhesive and the gel coat of the pool then adhere to the fiberglass shell. Once applied, follow any manufacturer instructions for drying and curing to ensure it has time to set.

4. Polyester Putty Works to Fill Gaps

Next in the pool repair process is applying putty to the crack in the pool. Once again, apply according to manufacturer specifications and allow the putty to dry.

5. Gel Coat and Fiberglass Cloth Finishing

Find and apply a gel coat that matches your pool as closely as possible to add a protective layer for sealing your minor repairs. Once applied, put gentle pressure on the area with your cloth to aid the repairing process.

When to Schedule Professional Fiberglass Pool Repairs

Unfortunately, some repairs might require the support of a professional team. Some of these instances include: cracking on an extensive level, cracks that penetrate into the pool shell, cracks that keep occurring in the same spots, or chemical damage-related cracks. Whenever these happen and DIY repair won’t cut it, a professional team like Locey Swim & Spa can help. We’ll improve your pool’s structural integrity through a professional assessment and repairs.

Whether you need pool repairs now or are looking for a team to assess your pool, Locey Swim & Spa is available when you need us! Reach out today to learn more about how we can help repair any cracks that your pool may have.