ZHIYI Hot Tub Test Strips 7- Way Swimming Pool Spa Water Chemistry Test Kits Free Chlorine Nitrate Hardness Nitrite Ph Total Alkalinity Chlorine -Black-

We always care about your water safety ZHIYI provide you with 7-Way Swimming Pool & Spa Water Chemistry Test Paper Water quality and safety knowledge needs to be spread to everyone? ?Total Chlorine: Having too little chlorine means your pool will be unsanitary, it will develop algae.  ?Free Chlorine: Too much chlorine in the pool stings your eyes, irritates your skin and turns blond hair green.  ?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 pools pH levels to fluctuate 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.  ?Nitrite ?Too high will cause hypoxia, cause death of aquatic products poisoning, and is not suitable for animal growth in aquariums ? Bromine?Too high corrosivity increases, irritates the skin, and can cause damage ? Your satisfaction is our top priority, please feel free to ask if you have any questions ?