Spider cracks are tiny cracks on the surface of a fiberglass pool’s gel coat or pool plaster. These cracks typically have a central point with thin cracks radiating from the middle, similar to a spider web.
Spider cracks can occur for a variety of reasons, including improper handling of the pool and stress from external forces.
Tree branches, rocks, or shifts in the ground beneath the pool can cause spider cracks in a pool. These cracks are usually tiny and hardly visible, and most often, they don’t pose any danger to the structural integrity of the pool.
These cracks can also be repaired by a professional if necessary.