HTH Liquid 6-Way Test Kit 6 ct

When pool water is unbalanced, it can irritate the skin and eyes and cause sanitizers can be less effective. Imbalanced water can even damage the pool's surfaces, structure or equipment if left untreated. Quickly and easily test your indoor and outdoor swimming pool water with the 6-Way Test Kit. To use - collect water sample 18 inches below water surface (approximately deep enough so the water reaches your elbow). Hold the bottle vertically when dispensing drops.