Water Quality

Questions and answers about water quality for Nashville pool owners.

• Why is my pool green?

  Green water is almost always algae, caused by insufficient sanitizer, poor circulation, or phosphate buildup. Treatment involves shocking, brushing, running the filter continuously, and addressing the root cause.

• How often should pool water be tested?

  Residential pools should be tested 2-3 times per week during swim season. Commercial pools require daily testing, often multiple times per day, with documented records.

• What is the ideal pH for a swimming pool?

  The ideal pH range is 7.4-7.6. Below 7.2 causes corrosion and irritation. Above 7.8 reduces chlorine effectiveness and causes scaling.

• What causes cloudy pool water?

  Common causes include poor filtration, high pH, low chlorine, high calcium hardness, or early algae growth. Proper diagnosis requires testing all chemistry parameters.

• Is pool water safe to swallow?

  Small amounts of properly treated pool water are generally not harmful, but swallowing significant amounts can cause nausea. Properly maintained chemistry minimizes health risks.