Chlorine serves many purposes in a swimming pool, such as keeping the pool clean, keeps the pool sanitized by killing germs and bacteria, controls organic debris that comes from body oils and perspiration, and stops algae from growing on the water. Some people do not like chlorine, however, because it causes eye irritation, irritation to the nasal passages, has a strong odor, and some people are allergic to it. If you do not want to use 100% chlorine in your pool, below are three alternatives.


Ionizers use two metals: silver, which is a sanitizer, and copper, which is an algaecide. It does not have an oxidizer, however, so you will still have to use a small amount of chlorine to keep the pool clean. The ionizer is a device that uses low-voltage direct current that sends the two metals into the pool water. The current's charge kills germs, algae, and bacteria.

An ionizer will not irritate your eyes or nasal passages while you are swimming in the pool. You can also substantially reduce the amount of chlorine that is required.


Your pool supplier may suggest that you use bromine instead of chlorine for your pool.  It is a good water sanitizer, but it does not oxidize as well as chlorine does. Many homeowners use BCDMH tablets, which is a hybrid version made from 27% chlorine, and 66% bromine.

Pool suppliers recommend bromine to their customers because it stays stable no matter the temperature of the water. It does have an odor, but is not as strong as chlorine, and it does not irritate the eyes or nasal passages.


An ozonator is a machine that is attached to the pool's filtration plumbing line. It releases ozone gas into the swimming pool that reacts with the impurities in the water. There are two different types of ozone generators: corona discharge and ultraviolet light.

With the ultraviolet light system, low-pressure vapor lamps are installed on the return line to create an ozone that kills pathogens as they pass by it.

The corona generator relies on an electrical arc that carries the ozone inside the generator. This also kills any pathogens that get into the filtration system.

The best person to talk to about these alternatives is the pool service company, like Oasis Pool Service LLC, that installed and maintains your swimming pool. They will be able to teach you how to use these alternatives, as well as give you more information about them.