What chemicals do you need for an above ground pool?
What chemicals do you need for an above ground pool? Things you’ll be testing for include chlorine, PH, total alkalinity, Cyanuric acid (stabilizer), and calcium hardness. The levels need to be properly balanced for safe and clean water before swimming in it. The free chlorine level should be between 2.0 and 4.0 ppm. The PH level should be between 7.2 and 7.8.