Commercial Pool Water Chemistry: A Plain-English Guide
Pool water has to be safe for swimmers all day long. This topic covers the tests people run on pool water and what each reading tells you. It also covers what to write down and when to act. It helps pool operators and anyone who checks the water.
- Cloudy Commercial Pool Water: What Should You Check?Check if you can see the main drain, test chlorine and pH, check the filter pump, and know when the MAHC says to close a cloudy pool.5 min read
- Commercial Pool Chlorine Range: What Should You Use?The CDC model code's free chlorine minimums, the label and closure limits above them, and how to write a chlorine range sheet for each pool.5 min read
- Commercial Pool pH Range: How to Set Your Site's LimitsThe pH range in CDC's model pool code, the pH levels it treats as closure triggers, and how to record pH and follow up at your own site.5 min read
- High Combined Chlorine in a Commercial Pool: What It MeansLearn what combined chlorine is, how to calculate it, the 0.4 ppm action level in CDC guidance, and what to record and who to call.5 min read
- How Often Should Commercial Pool Water Be Tested?See the CDC's pool testing intervals (before opening, every 2 or 4 hours, weekly, monthly) and build a schedule that fits your local code.5 min read
- Pool Chemical Usage Forecasting: How to Estimate UseEstimate each pool's chemical use from your records, work out days of supply, and set an order date without guessing at doses.5 min read
- Pool Chlorine Dropping: What to Do Before It Gets Too LowLearn what an early chlorine warning means, how to check current water conditions, and what to record when staff respond.5 min read