Purchasing a hot tub is a large investment – one that you want to enjoy as long as possible. Keeping your spa clean and sanitized is the best way to see that investment pay off for years to come.
Here’s our cheat sheet to hot tub chemistry and keeping yours clean and safe:
First off, you must decide which type of sanitizer you will use. There are five types: Chlorine, Salt System, Bromine, Soft Soak, and Minerals. Depending on preferences and needs, pick which sanitizer will work best for you.
Advantages
Disadvantages
Advantages
Odorless
Disadvantages
Advantages
Disadvantages
Advantages
Disadvantages
In order to keep your hot tub’s chemistry balanced it should be shocked every once in a while. “Shocking” is the routine of applying a treatment to your water that oxidizes and breaks-down dead organic material left in your sanitizer system.
Periodic shocking is critical for clear, clean hot tub water. Some shock treatments even have the added benefit of pH buffers and water clarifiers. Depending on how often and how many people used the tub, you should shock regularly. Also, you should determine which shock treatment to use based on the type of your sanitizer.
There are many chemicals you must balance to maintain your hot tub. When the mineral components of spa water are all correctly proportioned your water is balanced. In order to achieve this balance, you must check alkalinity, maintain a low pH level, and have the right amount of soft vs. hard water. Using test strips, you can test the measurements and adjust accordingly.
Total Alkalinity (TA) is a pH stabilizer that keeps your pH from drastically changing.
Both alkalinity and pH chemicals are inexpensive but extremely important. If the levels are too low it can cause damage, especially to your heater. If they are too high there will be a milky residue around water flows. That’s why it’s important to routinely check your hot tubs levels.
If both levels are low
If both are too high
Maintaining the correct balance of soft and hard water is critical to maintaining your spa. Having too soft of water can be corrosive to the shine of your tube and even lead to excessive foaming problems. Having too hard of water can lead to calcium hardness, which slowly eats away at the shell, pipes, and other parts of your tub.
If the water is too Hard
If the water is too soft
By maintaining the right chemistry for your spa, you’ll have your hot tub for years to come.