Swimming pools may sparkle on the surface, but not every threat can be seen with the naked eye. Parents often focus on floaties and sunscreen, but invisible biological contaminants can pose serious risks to children and adults alike. Bacteria, viruses, and fungi thrive in warm, wet environments which makes pools an ideal breeding ground when not properly managed.
More Than Just Chlorine Concerns
Even well-maintained pools are vulnerable to pathogens like Cryptosporidium, E. coli, and Pseudomonas. These microorganisms can cause gastrointestinal illness, ear infections, or rashes. Cryptosporidium is resistant to chlorine and can survive in treated water for several days. Kids are especially at risk, as they often swallow water while playing or spend longer periods submerged.
Viruses such as adenovirus, which causes pink eye and respiratory infections, are also commonly linked to recreational water. Meanwhile, fungi like those responsible for athlete’s foot or toenail infections spread through damp surfaces and shared areas around the pool, including showers and walkways.
Why Maintenance Isn’t Just About Appearances
Routine chemical testing and filtration are only part of the solution. Proper circulation, pH balancing, and attention to swimmer hygiene all play vital roles in keeping pathogens at bay. Facilities staffed by professionals with proper pool technician training are better equipped to maintain safe water quality. These individuals know how to interpret test results, adjust chemical levels, and recognize early signs of contamination.
Parents can act by encouraging showers before swimming, avoiding the pool during illness, and watching for signs of improper maintenance like cloudy water or strong chemical smells. A pool that looks clean isn’t necessarily safe. True protection comes from informed, consistent care. For more information, look over the accompanying infographic.
