Water Quality Fact Sheets

The PHTA Recreational Water Quality Committee (RWQC) has provided its technical expertise to create the fact sheets below to help advance the industry’s knowledge surrounding chemical products, processes, and devices that affect water quality maintenance of swimming pools, spas, and hot tubs.

• Abandoned Pools
• Alkalinity
• Boric Acid and Sodium Borates
• Calcium Hypochlorite
• Chloraminated Tap Water
• Common Interferences in Pool and Spa Water Testing
• Copper-Silver Ionizers
• Cyanuric Acid
• Decontamination of Spas and Wading (Kiddie) Pools
• Disposal of Acid Wash Water
• E.coli 0157:H7
• Effects of Wildfires on Pools
• Electrical Interlock Protection
• Electrolytic Chlorine Generators
• EPA Regulation of Pesticides and Pest Control Devices
• Flooded Swimming Pools and Spas
• Legionellosis
• Metals and Metal Staining
• Ozone Generating Systems
• Partial (Soft) Pool Closing
• Polyhexamethylene Biguanide (PHMB)
• Potassium Monopersulfate (KMPS)
• Pseudomonas Aeruginosa
• Scary Pool Stories
• Secondary vs. Supplemental Disinfection Systems
• Sodium Dicholor-S-Triazinetrione (Dichlor)
• Sodium Hypochlorite (Liquid Chlorine)
• Source Water
• Swimmer Hygiene
• Total Dissolved Solids
• Trichloro-S-Triazinetrione
• Ultraviolet (UV) Light Pool Systems
• Water Balance Indexes
• West Nile Virus and Its Impact on Pools and Spas
• Winterizing a Pool - Inground Pools In Severe Climates (Snowbelt)
• Zoonotic Disease