Fiberglass pool chalking

Why is my fiberglass pool shell whitening? This is a frequent concern that fiberglass pool customers may have to deal with at some point.

This dulling can start as a white film forming on the walls of the swimming pool and can also make the water appear cloudy. The white particulate can also build up in the filter which will require constant cleaning. This can happen to any fiberglass pool because of age, excessive chemical treatments (especially overchlorination) or more commonly, a combination of these concerns.

If you view a film of white or greyish-white film on the sides of your pool around the tile line, that's calcium. Calcium can build up and leach into the shell’s gelcoat. As fiberglass pools begin to age the gelcoat finish will slowly fade in color over time. Calcium scale deposits happen when your water an over abundance of calcium or from hard water. The white flakes are usually are there from calcium deposits that have accumulated over the years.

Keeping a great looking fiberglass swimming pool means keeping the water in balance by keeping the right chemicals and systems to help control the factors that make calcification occur. One such system is the Vibranz fiberglass pool care system. 

How do you get white scale off a fiberglass pool