What is the Best Hot Tub Chemical (Chlorine vs. Bromine)

Spas and hot tubs are supposed to help people relax. They are equipped with powerful jet pumps that loosen up tight muscles and put you in a state of serene bliss. While you soak in your hot tub spa, you don’t want to be worrying about the safety and sanitation of the water in your hot tub. Hence, knowing the best hot tub chemicals to use in your indoor hot tub is as crucial as choosing the best hot tub itself.

Bacteria grow and thrive in conditions with high moisture and humidity like warm water in a hot tub. No one wants to share special moments with bacteria and fungi. You can use natural hot tub chemicals to take away this nuisance for good. Hot tub maintenance is not so difficult if you know the two types of chemical disinfectants.


Among the most popular and most effective treatments for hot tub water is chlorine. As a hot tub chemical, chlorine works by killing microorganisms like bacteria fungi. You can put in granulated chemicals to the solution every other day to reinforce the disinfection process. You can buy these granulated chemicals along with other hot tub supplies.

When free chlorine reacts and combines with chemicals in the hot tub water while it is dormant, the result is combine chlorine, which is ineffective as a disinfectant and can even lead to health problems. You need to make sure that the level of unbound chlorine is maintained to prevent the occurrence of combined chlorine and keep the spa safe for use.


Bromine is among the most well-known hot tub chemicals for dummies. It can be used as an alternative to chorine and other sanitizers. Bromine is usually administered in two treatments. First, it is used as a primary sanitizing solution while the second one activates the sanitizing agent, which maintains water safety and cleanliness until the water is ready for the succeeding treatment session.

Which is better, chlorine or bromine?

Hot Tub ChemicalsWhen choosing between chlorine and bromine, you have to consider certain factors. On one hand, chlorine is fast and easy to use. It does not interfere with other hot tub chemicals and does not alter water acidity. Chlorine, however, has a repugnant smell that many people find unacceptable.

Bromine, on the other hand, does not have that annoying chlorine smell and is also easy to use. But the chemical sometimes erodes and tarnishes the tub surface. But bromine is still the top pick for people who are allergic to sanitizers and bothered by the caustic smell of chlorine.

Keep it neat and clean

Maintaining your outdoor hot tub does not stop with choosing the better hot tub chemical. You have to follow the manufacturer’s instructions in the right administration of the chemicals, including proper storage of hot tub accessories when not used. Whatever your choice of hot tub chemical is, you should not be worried about bacteria companions.