Can you put minerals in a hot tub?
Emily Sparks
Published Jan 10, 2026
Using a mineral system can be a great option to kill bacteria in your spa water while maintaining water clarity, keeping pH in neutral territory, and reducing bromine or chlorine usage for softer and more comfortable water.
Can you add minerals to hot tub?
Mineral sticks are probably the easiest way to add minerals to your hot tub. This stick is preloaded with everything you need, and all you have to do is insert it into your cartridge filter. The water that passes through the hot tub filter will pick up the minerals and send them into the tub via the return jets.
What do minerals do in a hot tub?
Hot tub mineral systems put silver and copper to work to keep your spa clean and free of bacteria and algae. Some also include limestone. This mineral absorbs the acid from chlorine, which helps maintain a neutral pH level.
Can you put mineral salts in a hot tub?
The safest way to purchase salt is to find a product specifically made for hot tubs or pools because it provides the reassurance that the product is pure and hasn't been altered during processing. If you have a salt water pool you can use the exact same pool salt with the same benefits that you experience in your pool.
What can I use in a hot tub instead of chemicals?
More than one alternative to chlorine in a hot tub
- Ultraviolet (UV) system. This is an excellent alternative to chlorine in a hot tub. ...
- Salt-based systems. These systems eliminate the need for chlorine or bromine. ...
- Ozonators. ...
- Ionizers. ...
- Non-chlorine shock. ...
- Enzyme-based treatment. ...
- Keep your hot tub covered. ...
- Shower before use.
Do spa mineral sticks work?
The benefits of using minerals in your spa means fewer harsh chemicals in the water you soak in. Using mineral solutions, enzymes and other natural treatments can make your water softer, cleaner and clearer. However, you will still need to use bromine or chlorine as a sanitizer.
What can I use instead of a spa shock?
Salt Water
The salt chlorine generator is turning salt into chlorine, which is what's sanitizing your spa. This makes chlorine shock the best choice. You can also use non-chlorine shock if you're concerned about the chlorine level being too high.
Can I put magnesium in my spa?
Some magnesium products are safe to use in a spa as long as they do not have a high salt content. If you are looking for a magnesium product to add to your spa, Zodiac MagnaSpa is an excellent option.
Is it OK to put Epsom salt in a hot tub?
Conclusion. In most cases, you should never add pure Epsom salts to your hot tub. Despite this warning, if you still want to try, just be sure to drain and thoroughly clean the hot tub immediately after you're done soaking. This will help to avoid long-term damages to your spa.
Can I put Himalayan salt in my hot tub?
Table salt, rock salt, epsom salt, and even some products marketed as natural such as pink Himalayan salt, are best left out of your hot tub. Not only can they mess up your water chemistry, but if they damage your spa, there's a good chance you will have voided the warranty.
Are there salt water hot tubs?
If you'd rather spend your time in the water instead of cleaning it, salt water spas are right for you. And because they use fewer chemicals, salt water hot tubs are ideal for people who are sensitive to chemical cleaning products. It's time to be kind to you.
What is a mineral purifier?
Introduced over 30 years ago, Mineral Purifiers use natural minerals like copper and silver to zap contaminants and bacteria. They are so effective, your pool chlorine has very little work to do, reducing your pool chlorine demand.
How do you add vitamin C to a hot tub?
Use 2.5 parts ascorbic acid per every one part chlorine in the hot tub. Ascorbic acid is often sold as a stain remover.
When should I shock my hot tub?
Generally it is recommended that you shock your hot tub once a week – more often if it's seeing heavy use. If your levels are all good, but the water is a bit cloudy or doesn't quite smell right, it's time for a shock. You should also shock the tub if you haven't used it for an extended period of time.
Do I need bromine in my hot tub?
Is bromine OK for a hot tub? An alternative chlorine, bromine can be used to keep hot tub water clean. However, bromine works differently than chlorine and is not the best choice for use with mineral systems. Bromine breaks up the particles in the water by ionizing the water.
Can I put essential oil in my hot tub?
Essential oils aren't designed for use in hot tubs, so unfortunately they cannot be used inside a spa. These products can cause a myriad of problems to a hot tub's filtration system. Essential oils act the same way the oil that comes from our skin does, but more potent.
Can you put bubble bath in a hot tub?
Hot tubs aren't intended to be used as a bathtub, especially when it comes to soap and suds of any kind. This can cause costly damages and a major foam issue. Never add bubble bath, shampoo, detergent or any other soap product.
How do you ruin a hot tub?
6 Things that Destroy Hot Tubs and Swim Spas
- Leaving the Spa Dry after Draining. ...
- Excess Contaminants. ...
- Soaps and Bubble Baths. ...
- Using Pool Chemicals. ...
- Shutting Off the Spa. ...
- Keeping the Spa Uncovered. ...
- Contact Your Source for Affordable Hot Tubs in Fair Oaks for More Advice.
What chemicals do I add to my hot tub after filling?
When a hot tub has been refilled, it is important to give the water a high dose of sanitiser. This can be done by adding 60g of chlorine granules per 1,500 litres of water to start the sanitation process and allow the level to drop to 3-5mg/l before using the hot tub.
Can I switch from chlorine to bromine in my spa?
Can you switch from chlorine to bromine? You can switch from chlorine to bromine sanitizer in a hot tub. In fact, it is actually easier to go from chlorine to bromine than the other way around.
What can I put in my hot tub instead of chlorine?
One option is Bromine. Bromine is from the same 'family' as chlorine however it is slightly slower reacting, slighty softer on your skin and works better at higher temperatures so it has a lot of appeal for many hot tub users. Bromine comes in tablet form and is available as infused granules too.
Which is better bromine or chlorine?
Bromine is more stable than chlorine, especially in warm water, making it more commonly used in spas, whereas chlorine is more often used in pools. The exception to this is ultraviolet (UV) light, which destroys both chemicals, but bromine breaks down more quickly.
How long does a Spa Frog mineral cartridge last?
The mineral cartridge lasts four months or whenever the hot tub is drained and refilled. This comes in a new FROG @ease System kit. The SmartChlor Cartridge lasts 3-4 weeks depending on the size of your tub and how often it is used. This is sold in a convenient 3-pack.
What is a spa mineral sanitizer?
Nature2 Spa Mineral Stick. The Nature2 Mineral Stick uses patented mineral-bed technology to destroy bacteria and improve the look, feel and smell of your hot tub water by reducing chlorine and bromine requirements. If used with MPS (Potassium Monopersulfate), Nature2 Spa becomes a complete spa sanitizing system.