Q. Should I use liquid or granular chlorine? It depends on a couple of factors. Liquid chlorine (also known as Sodium Hypochlorite) is one of the easiest forms of chlorine to use, as there’s no need for premixing. It has a limited shelf life so it shouldn’t be purchased too far in advance.

Q. What is ozone? A. Ozone is a sky-blue gas formed naturally by the action of the sun’s ultraviolet rays, or when a large electrical discharge, like lightning, passes through oxygen.

TIP: Ozone is a powerful oxidizing and disinfecting agent for pool water.

Q. What is superchlorination? A. Superchlorination is an important part of swimming pool maintenance because it keeps your chlorine at the right level to effectively kill off bacteria and other contaminants.