The most common pool sanitizer is chlorine, but the best pool sanitizer depends on factors like your budget, type of pool, indoor or outdoor, and maintenance routine. Use this easy comparison chart to see which pool sanitizer is right for you: Chlorine. Bromine.

What is a Magnesium pool? A magnesium pool or mineral pool uses magnesium chloride combined with chlorine to kill bacteria and other elements in the pool water as well as preventing algae growth. Bathing in magnesium-rich water (such as having an Epsom bath) is known for having some health benefits.

Chlorine is added to the water to kill germs. When chlorine is in a pool, it forms a weak acid called hypochlorous acid that kills bacteria like salmonella and E. coli, as well as germs that cause viruses such as diarrhea and swimmer's ear. Chlorine in pools results in no odor and health swimming conditions.

There are three main types of swimming pool water systems: chlorine, saltwater, and mineral. Below we'll break down the advantages and disadvantages of each type and what might be best for each type of swimming pool.