ARUISI Pool and SPA Test Strips for Hot Tubs, Pool Protector 6-in-1 Water Quality Test Strips - Total Chlorine, Free Chlorine, pH, Total Alkalinity, Cyanuric Acid, Total Hardness. (2 Pack)

Double P(Pure Protector) keeping the water of your swimming pool, spas and hot tub in a healthy & clean condition, let you know your pool water is safe and clean to play and have fun is very import! Direction: Just dip a strip in water 2 seconds, take it out and wait for 15 seconds, compare each panel color changes to the color chart on the side of the bottle, then the results are obtained. Chemistry Features: Total Chlorine: Having too little chlorine means your pool will be unsanitary, will develop algae and be unsafe for you to swim in. Free Chlorine: Having too much chlorine causes skin and eye irritation due to it causing pH to rise. pH: Low pH results in skin & eye irritation and a high pH causes long-term damage to your pool and equipment. Total Alkalinity: Low or high alkalinity levels will result in your pool’ pH levels fluctuating making it harder to maintain. Total Hardness: Very hard water will turn pool water cloudy and too soft water will cause damage to pool & equipment. Help you easy to analyze six chemical factors of water quality. Satisfactory Customer Service: Please don’t hesitate to contact us by Amazon email if you have any question!