Tech Notes Archives

2021

• January - The Crucial Role of Standards and Codes
• February - Ultraviolet (UV) Pool Systems
• March - Operating Guidelines for a Successful Public Pool and Spa Reopening During the COVID-19 Pandemic
• April - Review: COVID-19 and Pools
• May - Start-Up for Plastered Pools
• June - Swimming in Natural Environments
• July - Total Alkalinity in Pool and Spa Water
• August - The RWQC: How They Do It
• September - Salt Chlorine Generators
• October - Calcium Hypochlorite (cal hypo)
• November - Copper-Silver Mineral Sanitizers

2020

• January - Source Water and Its Effects on Pool and Spa Maintenance
• February - In Memoriam: Greg Garrett
• March - Wild Animals in the Water
• April - Preventing Chlorine Gas Leaks
• May - Sodium Hypochlorite, AKA "Liquid Chlorine"
• June - The Importance of Swimmer Hygiene
• July - Secondary vs. Supplemental Disinfection Systems
• August - Metals and Metal Staining
• September - Partial (Soft) Pool Closing
• October - Scary Pool Stories
• November - The Impact of Chloraminated Tap Water on Pools and Spas

2019

• January - Pool Care and Repair After Wildfires
• February - Total Dissolved Solids: Explained
• March - Ozone Generating Systems: The Facts
• April - Biguanide
• May - Trichlor: The Dependable Pool Performer
• June - Potassium Monopersulfate (KMPS): Non-Chlorine Shock
• July - Naegleria Fowleri: Brain-Eating Amoeba
• August - Treating Flooded Pools and Spas
• October - Abandoned Pools
  The committee updated this topic in a 2020 RWQC Fact Sheet.
• November - West Nile Virus
  The committee updated this topic in a 2020 RWQC Fact Sheet.

2018

• February - E. coli: Waterborne Health Risk
• March - Rash Cause: Pseudomonas aeruginosa
• April - EPA Regulation of Pool and Spa Chemicals and Sanitizing Equipment
• June - Water Balance Indexes
• August - ABCs of Algae
• September - Winterizing Inground Pools, Step by Step
• October - Lower the Risk of Legionellosis
• November - The Basics: Boric Acid and Sodium Borates

2017

• January - Test Killers
• February - Alkalinity
• March - Cal Hypo: The Facts
• April - Chloramines in Source Water
• June - Chemical Basics: Cyanuric Acid
• July - Ion Power
• August - How Salt Chlorine Generators Work
• September - Decontamination of Spas and Wading (Kiddie) Pools
• October - Dichlor: The Sanitizing Stalwart
• November - Cleaning Up Flooded Pools and Spas