Can I Mix Chlorine And Bromine? The Ultimate Guide

Chlorine vs Bromine Which is Better? Inground pool maintenance, Pool


Chlorine and bromine are two of the most common chemicals used to sanitize swimming pools and hot tubs. While they both have their benefits, many people wonder if they can be used together. In this article, we will explore whether or not it is safe to mix chlorine and bromine, and what the consequences may be.

What is Chlorine?

Chlorine is a highly effective sanitizer that is used to kill bacteria, algae, and other microorganisms in swimming pools and hot tubs. It is available in several forms, including tablets, granules, and liquid. Chlorine is a popular choice for pool owners because it is relatively inexpensive and easy to use.

What is Bromine?

Bromine is another popular sanitizer that is often used as an alternative to chlorine. It is especially effective in hot tubs because it remains active at high temperatures. Bromine is available in tablet form and can also be used as a granular product. While it is more expensive than chlorine, some people prefer it because it has less of a chemical odor.

Can I Mix Chlorine and Bromine?

The short answer is no, you should not mix chlorine and bromine. While both chemicals are effective sanitizers, they should not be used together. Mixing chlorine and bromine can lead to a chemical reaction that produces harmful byproducts, such as chloramines and bromamines.

What are Chloramines and Bromamines?

Chloramines and bromamines are harmful byproducts that are produced when chlorine and bromine are mixed together. Chloramines are formed when chlorine reacts with nitrogen compounds in the water, while bromamines are formed when bromine reacts with nitrogen compounds. These byproducts can cause eye and skin irritation, as well as respiratory problems.

What Should I Do Instead?

If you want to use both chlorine and bromine in your pool or hot tub, it is best to use them separately. You can alternate between using chlorine and bromine, or you can use one chemical for a period of time and then switch to the other. This will help prevent any harmful chemical reactions from occurring.


While both chlorine and bromine are effective sanitizers, they should not be mixed together. Mixing these chemicals can lead to the formation of harmful byproducts that can cause health problems. Instead, it is best to use chlorine and bromine separately or alternate between them. By following these guidelines, you can ensure that your pool or hot tub remains clean and safe for swimming.

Disclaimer: This article is for informational purposes only and should not be used as a substitute for professional advice. Always consult a qualified pool or hot tub technician before making any changes to your pool or hot tub maintenance routine.