Posted by So, you’ve decided to take the plunge and get a hot tub? Congratulations! A hot tub is a wonderful addition to your home, providing a means for relaxation, stress relief, and a luxurious way to unwind.
It’s important to note that with great relaxation comes great responsibility – specifically, the responsibility of maintaining your hot tub’s water for cleanliness and safety. It’s important to understand which chemicals are needed to keep your spa water pristine.
In this guide, we’ll explore the essential chemicals that every first-time hot tub owner should have on hand, and why they’re necessary for maintaining a clean and safe hot tub environment.
1. Chlorine, Bromine, or Mineral Sanitizer
Sanitizers are essential in hot tubs, as they effectively kill bacteria, viruses, and other harmful organisms that can thrive in warm water. Bromine is a popular choice, due to its effectiveness and ease of use. Simply plop some tablets in your feeder and check it weekly.
Chlorine is a common sanitizer used in swimming pools but pool chlorine (Trichlor) isn’t suitable for hot water in hot tubs. Only one form of chlorine (Dichlor) is suitable for hot tubs, but it’s only available in fast dissolving granular form, so it’s best used as shock in hot tubs (more on that later).
Fortunately, Saltwater Chlorine Systems for hot tubs have been gaining traction in the industry. The main component is a Chlorine Generator added to the spa that converts salt to chlorine in a regenerative cycle. Water salinity levels are very low (2500 ppm), so low in fact, you can’t even taste it.
For those with sensitive skin looking for a more natural alternative, Mineral Sanitizers are an excellent choice. The most notable benefits are low odor and ease of use.
2. Alkalinity/pH Increaser & Alkalinity/pH Decreaser
Maintaining the proper pH balance and total alkalinity in your hot tub water is crucial for ensuring user comfort and preventing equipment damage.
Total alkalinity acts as a buffer to help stabilize pH levels in hot tub water. Low alkalinity can lead to pH fluctuations and corrosive water, while high alkalinity can cause cloudy water and scaling.
Maintaining alkalinity within the recommended range (typically 80-120 ppm) will help keep your hot tub water balanced and prevent pH fluctuations.
pH is a measurement of water’s acidity. Low pH (acidic) leads to corrosion of hot tub equipment, while high pH leads to scale formation on internal components. The ideal pH range for hot tubs is typically between 7.2 and 7.6, or slightly alkaline.
Regular testing and adjustment of pH levels will help keep your hot tub water balanced and comfortable for soaking.
Pro Tip: It’s much better to have a pH that’s slightly high versus slightly low.
3. Shock Treatment
Shock treatments help break down organic contaminants, such as sweat, oils, and cosmetics that can accumulate in hot tub water. Regular shock treatments, typically once a week or after heavy use, help prevent cloudy water, unpleasant odors, foam, and skin irritation.
Various forms of shock are available, including chlorine-based and non-chlorine shocks, giving you the flexibility to choose the right option for your needs.
4. Calcium Hardness Increaser
Calcium hardness refers to the concentration of calcium ions in hot tub water. Proper calcium hardness levels help prevent corrosion of metal components and scale formation on surfaces.
Calcium Hardness Increaser raises calcium levels in soft water areas where calcium concentrations may be low. Maintaining calcium hardness within the recommended range (typically 150-3000 ppm) will help protect your hot tub and ensure water clarity.
5. Test Strips
What’s the point of adding chemicals to the water if you don’t know what to add? That’s where Test Strips come into play. Look for a test strip that tests sanitizer level, TA, pH, and water hardness at a minimum. Specialty test strips are available to test for MPS (non-chlorine shock) levels and Salinity Levels (for saltwater spas).
Starter Kits
“But, I want a kit with everything included,” said every new hot owner. Don’t worry, we’ve got you covered. From Bromine to Mineral to Saltwater sanitizers, we’ve got complete Starter Kits with everything you need. Not just kits with sample sizes either, these are the real McCoy – full-size products at huge savings!
Understanding the importance of proper water chemistry and investing in the necessary chemicals is essential for maintaining a clean, safe, and enjoyable hot tub experience. By regularly testing and balancing your hot tub water, you can ensure optimal performance, prolong the life of your spa, and create a relaxing oasis for yourself and your loved ones to enjoy.
With the right chemicals and a little bit of maintenance, you’ll be well on your way to hot tub nirvana.
Hot Tub Blog | SpaDepot.com 