What chemicals do you need for a pool?

To maintain a pool, you'll typically need several key chemicals: chlorine or bromine for disinfection, pH balancers (such as sodium carbonate or sodium bisulfate) to keep the water's acidity in check, and alkalinity increasers (like sodium bicarbonate) to stabilize pH levels. Additionally, you may need calcium hardness increasers to prevent corrosion and scale formation, as well as algaecides to prevent algal growth. Regular testing and adjustment of these chemicals ensure safe and clean swimming water.