In a recent comment from the blog post on how to balance hot tub water, it was mentioned that ozone systems can increase the efficiency of the salt water hot tub water chemistry. This is very true! So I wanted to write a post on what ozone systems can do to hot tub water – in spas with and without salt water. (Thanks for the comment Patti!)
What an Ozone System does
Oxygen is the fundamental ingredient found in all different forms of water sanitization and oxidization.
An ozone system uses oxygen to oxidize bacteria in a hot tub. This is the oldest form of water maintenance in the world. Mother Nature has been using oxygen to clean water since the beginning of time. Oxygen has the chemical composition of o2. Ozone has an extra oxygen molecule so the chemical composition of ozone is o3. This extra oxygen molecule is known as a free radical (meaning unstable). Being that the o3 is unstable, this oxygen molecule will actively seek out something to attach itself to and stabilize. Once it attaches to a piece of bacteria, the oxygen molecule oxidizes the bacteria.
Oxygen is the strongest natural oxidizer on the planet and is over 100 times stronger than chlorine or bromine at oxidizing bacteria. Health Canada requires the use of a chemical sanitizer, chlorine or bromine in addition to oxygen – to ensure that harmful bacteria can not develop in a hot tub. All hot tubs in Canada need chlorine or bromine. Since Health Canada requires the use of chlorine or bromine in hot tub water, we can’t recommend using only oxygen to keep water safe and balanced. The next best thing a spa owner can do is utilize ozone systems to kill most of the bacteria in the water. By doing this, you can have chlorine or bromine in smaller doses to remove any bacteria that is not killed by the ozone system.
This will reduce your overall exposure to chlorine and bromine by a large margin which is very appealing to most hot tub owners. The benefits of ozone go even further than this to reduce your exposure to chemical sanitizers.
Do you have an Ozone System in your hot tub? Share your comments with us!