THE PROBLEM

Osmosis, popularly known as Fibreglass Cancer or blisters, is one of the worst issues with fibreglass pools.

 

When contaminated water from the outside of the pool (soil area) filters to inside the fibreglass and penetrates into the top-coat, it shows as blisters or bumps on the pool’s surface. These blisters can vary in size from +3mm to the size of a fist. Once they reach their limit, these blisters will eventually crack, leaving behind small black/brown marks on the pool surface, bringing bacteria and nasty pollution to the water. Due to the high mineral content in these cracks, algae formation takes place which is called black plague.

Once osmosis breaks out in your pool, the water conditions are less than recommended for your family, particularly to your little ones.

 

Plus, it is not easy to get rid of these black spots without having to professionally resurface the pool with a new layer of fibreglass correctly installed.