1.Practical and helpful: with an ideal pH value of about 7.2 7.6, the water pH test kit is useful for testing the water quality. In addition, the perfect chlorine content is about 1.0 1.5. 2. and practical: The chlorine test kit is easy to take with you as it is lightweight and compact and comes with a storage box. 3.Read with ease: Water quality test kits make it easy for you to understand the parameters and read the data at a glance thanks to the combined colour map detector for pH/residual chlorine. 4.Easy to use: by rinsing the colourimetric tube with the water to be tested, adding 3 drops of reagent for chlorine, closing the lid and turning the tube a bit, then comparing the readings for chlorine, the pool pH test kit is practical to use.