Are you confused by the many chemicals that your swimming pool needs to stay clean and balanced? Below is a brief overview of the most commonly used pool chemicals and their roles in pool maintenance. Chlorine The most well-known pool chemical is chlorine. It kills bacteria and algae. You can buy it in powder, liquid, or tablet form. Hydrochloric acid is formed when water reacts with chlorine. This compound fights bacteria. Fun fact: Although the pool smell is often mistakenly thought to be caused by chlorine, it is the absence of chlorine that causes it. This is because chlorine reacts with organic matter like skin and oils to create a…