The 10 Best Hot Tub Chemicals to Buy in (2023)

The 10 Best Hot Tub Chemicals

Hot tubs create peaceful oases in our daily lives but can quickly resemble swamps if they’re not kept clean.

To ensure that you’re getting the best hot tub chemicals, it’s important to maintain its safety conditions. We can accomplish safe conditions by use of hot tub chemicals.

As a hot tub owner, you have to use the very best chemicals available. Endless product options make decision-making tedious.

That’s why we’ve used our experience and expertise to compile a list of products, creating the best spa chemicals reviews. So, which hot tub chemicals are best?

Our Recommended Hot Tub Chemicals

 

 What are the best hot tub chemicals? 

In this guide, We’ll look at important factors like choosing bromine or chlorine sanitation, non-chlorine shock options, how to control pH, and which clarifiers work best for preventing cloudy water.


1. Leisure Time Spa Disinfectant Brom Tabs Brominating Tablets

Leisure Time Spa Disinfectant Brom Tabs Brominating Tablets

These Leisure Time Spa Disinfectant Brom Tabs Brominating Tablets are the best bromine spa chemicals. Among the chief chemicals needed for hot tubs, bromine acts similarly to chlorine in pools.

The tabs are meant to make dosing easier and are compatible with bromine sanitizing systems. The Leisure Time Brom Tabs will sanitize hot tub water to keep it clean, clear, and odour-free.

Ultimately, the Leisure Time Brom Tabs are ideal for hot tubs not exposed to direct sunlight. However, bromine is more stable than chlorine at high temperatures, so it’s fit for most hot tubs. The four-pound container holds roughly 128 one-inch tablets.

Pros

  • Odor-free
  • Easy to use

Cons

  • Bromine cannot be stabilized when exposed to UV rays.

 

 

What customers are saying?

Many reviewers mention how the product keeps their spa water clean and clear for weeks at a time. They don’t have to measure out chemicals or add new tabs very often constantly.

The bromine provides great sanitizing power without irritating eyes or skin like chlorine. Most users say it’s an easy and convenient way to maintain proper water chemistry.

The few negative comments mention an occasional slower dissolving tablet, but this is rare. Overall, most users are very pleased with the quality and effectiveness of LEISURE TIME Brom Tabs.

Bottom Line:

For spa hot tub owners looking for an easy way to keep their water clean and clear, LEISURE TIME 45430A Brom Tabs are a top choice. These chlorine tablets for hot tubs provide strong sanitizing power to eliminate bacteria and contaminants.

Their slow-dissolving formula offers lasting protection, too. If you want convenience plus reliable water sanitation, these bromine tablets are a great option to consider.


2. Leisure Time E5 Spa 56 Chlorinating Granules

Leisure Time E5 Spa 56 Chlorinating Granules

The best hot tub chlorine product is the Leisure Time E5 Spa 56 Chlorinating Granules. The Leisure Time Chlorinating Granules are the best chemicals for hot tub start-up.

The chlorinating granules are compatible with chlorine sanitizing systems. The Leisure Time Chlorinating Granules will also sanitize hot tub water and keep it clean, clear, and odor-free.

The Leisure Time Chlorinating Granules are convenient for those whose hot tubs are exposed to direct sunlight. The granules are ideal for those looking for a little more control of the chemical balance than tablets allow.

Keep in mind the smell can be too toxic for some people. The bottle has five pounds of granules.

Pros

  • Easy use and portioning
  • Low cost

Cons

  • Chlorine is less stable at high temperatures
  • Stops working after killing bacteria
  • Unpleasant odor

 

 

What customers are saying?

Most reviewers are pleased with the performance of Leisure Time E5 Spa 56. They say it’s an effective and affordable chlorine shock that helps maintain clean, clear spa water between regular sanitizing.

Users mention better results compared to dichlor or bleach shocks. Any odors dissipate quickly after application. Overall, customers find this to be a convenient chlorinating treatment for spa cleaners.

Bottom Line:

Leisure Time E5 Spa 56 Chlorinating Granules are an easy-to-use shock treatment designed for spa sanitation. The fast-dissolving formula clarifies water and provides a strong chlorine boost to destroy contaminants.

For spa owners looking for an effective granular shock, E5 Spa 56 is a top performer that helps keep water fresh between regular chlorination.


3. SpaGuard Enhanced Spa Shock

SpaGuard Enhanced Shock 

The SpaGuard Enhances Spa Shock is compatible for use with other chemical solutions. The SpaGuard Spa Shock products are the best spa chemicals for sensitive skin.

The Spa Shock is compatible with chlorine, bromine, ozone, and ionization systems. The shock treatment helps maintain ideal levels of pH in your hot tubs and cleans contaminant buildup.

It is ideal for people with sensitive skin and a past of irritation from other chemicals. The shock treatment is strong enough to remove the need for additional chlorine sanitization.

Pros

  • Eliminates odors
  • Fast acting: shocks then soaks in in about 15 minutes
  • Easy on sensitive skin

Cons

  • Chlorine-based (58%) – less stable at high temperatures.

 

 

What customers are saying?

In general, customers find SpaGuard Shock very effective for regular spa maintenance. It provides a quick refresh and keeps water looking clean and clear between treatments.

Most users are pleased with the performance and say it’s easy to apply and dissolves rapidly. They would recommend it to other spa owners looking for a quality non-chlorine shock.

Bottom Line:

SpaGuard Enhanced Spa Shock is an easy-to-use granular oxidizer that clarifies and revitalizes spa water. Its fast-acting formula contaminants without altering pH, providing a sparkling, refreshing effect. SpaGuard Enhanced Spa Shock is a top choice for keeping water clean and inviting.


4. In The Swim Pool Bromine Tablets

In The Swim Pool Bromine Tablets

It’s noted that bromine is among the best chemicals to use for hot tubs. The Pool Bromine Tablets from In The Swim are similar to the previously mentioned Leisure Time Brom Tabs.

The tablets make dosing easier, coming in small, one-inch discs. In The Swim’s Pool Bromine Tablets require no additional stabilizing agent.

Like the Leisure Time Brom Tabs, the Pool Bromine Tablets are ideal for hot tubs not exposed to direct sunlight because of the damaging effects of UV rays.

The tablets dissolve slowly, however, aiding in the lengthened lifespan of the chemical. The 10-pound container holds roughly 320 one-inch tablets.

Pros

  • No chlorine odor
  • Easy to use
  • Slow dissolving

Cons

  • Bromine cannot be stabilized when exposed to UV rays

 

 

What customers are saying?

Most reviews mention the tablets providing clear water for weeks at a time. Users like the convenience of the pre-formed tablets versus dealing with bromine liquids.

They also say bromine is less harsh than chlorine – no stinging eyes or irritated skin after swimming. Some people do note an occasional slower dissolving tablet, but this is uncommon.

Overall, reviews indicate these are quality bromine tablets that are easy to use in floating dispensers or feeders. They provide strong sanitizing power and help maintain proper water chemistry.

Bottom Line:

The Swim Pool Bromine Tablets are an excellent choice as hot tub chemicals and spa chlorine tablets. The slow-dissolving tablets offer lasting sanitizing power to eliminate bacteria and algae.

Their easy-to-use format also makes maintaining proper bromine levels simple. If you want clear, healthy pool water without the harshness of chlorine, these spa and hot tub degreaser-safe bromine tablets are a top option.


5. ScumBuster 2-Pack Hot Tub Spa Water Clarifier

ScumBuster 2-Pack Hot Tub Spa Water Clarifier

The ScumBuster 2-Pack Hot Tub Spa Water Clarifier is an awesome product in regard to chemicals for spas and hot tubs. There are no harsh chemicals present in this formula by ScumBuster, and it is eco-friendly. This formula is meant to prevent tub rings and other scum on tubs without affecting pH.

This formula by ScumBuster is a great secondary solution. The bottles are sure to last for a while, meaning a cleaner hot tub for you for longer. Comprised of amino acids and no harsh chemicals, there are no cons to using this product.

Because of this amino acid formulation, the solution is biodegradable as well.

Pros

  • Removes scum associated with body oils, dirt, and deposits
  • Economical: only use 1/2 ounce per 100 gallons
  • Zero harsh chemicals
  • No effect of pH levels

Cons

  • N/A

 

 

What customers are saying?

According to customer reviews, ScumBuster works very effectively to clear up dull, cloudy, hot tub water. Users mention how it pulls oils and contaminants out of the water, allowing filters to trap them easily within hours after application.

Overall, most hot tub owners are very satisfied with ScumBuster’s ability to clarify and refresh cloudy spa water. They say it’s super easy to use – toss it in a pouch. The convenient 2-pack makes treating the water simple and affordable.

Bottom Line:

ScumBuster Hot Tub & Spa Water Clarifier is an effective specialty formula that removes oils, scum, and contaminants to restore clarity and sparkle.

The convenient pouches make it easy to revive dull water between complete spa draining. For a fast-acting clarifier, ScumBuster is a top choice for our list of the best hot tub chemicals.


6. SpaGuard Enhanced Shock (2 lb)

SpaGuard Enhanced Shock (2 lb)

This product by SpaGuard is identical to the previously reviewed SpaGuard Enhanced Spa Shock, aside from product quantity. It’s compatible for use with other chemical solutions.

The SpaGuard Enhanced Spa Shock products are great for sensitive skin. The Spa Shock is compatible with chlorine, bromine, ozone, and ionization systems.

The Enhanced Spa Shock is ideal for people with sensitive skin. The shock treatment is also strong enough to remove the need for additional chlorine sanitization.

This product is great for those who need less than the six-pound product, weighing in at two pounds.

Pros

  • Eliminates odors
  • Fast acting: shocks then soaks in in about 15 minutes
  • Easy on sensitive skin

Cons

  • Chlorine-based (58%) – less stable at high temperatures

 

 

What customers are saying?

According to customer reviews, SpaGuard Enhanced Shock works extremely well to refresh cloudy spa water. Users mention how it clears up dull, hazy water very quickly after application.

Customers find this shock very effective for regular spa maintenance. It provides a quick refresh and keeps water looking clean and clear between treatments. 

Bottom Line:

SpaGuard Enhanced Shock is an easy-to-use granular oxidizer that clarifies and revitalizes spa water.

Its fast-acting formula oxidizes contaminants without altering pH, providing a sparkling, refreshing effect. This 2 lb jar is a top choice for keeping water clean and inviting.


7. Spa Essentials 32130000 Chlorinating Concentrate Granules

Spa Essentials 32130000 Chlorinating Concentrate Granules

The Spa Essentials Chlorinating Concentrate Granules is one of the best hot tub chemical treatment products. The formula is meant to combine sanitizing and oxidizing.

The Spa Essentials Granules are simple to administer and can be added directly to the hot tub without any pre-dissolving process.

The Spa Essentials Chlorinating Granules are great for people looking for an easy, one-step sanitization formula. Because of the destabilization of chlorine at high temperatures, this product is ideal for those hot tubs exposed to sunlight and trying to avoid bromine.

The granules quickly dissolve and begin acting immediately. They will give off a chlorine odor for those easily irritated by this.

Pros

  • Quick-dissolving and fast-acting
  • Easy to administer
  • 2-in-1 formula

Cons

  • Chlorine odor
  • Chlorine is less stable at high temperatures

 

 

What customers are saying?

Most customers are satisfied with the performance of Spa Essentials Chlorinating Concentrate. They say it’s an effective and affordable chlorine shock that helps maintain clean water between regular sanitizing.

Many reviewers mention better results than standard bleach products. The easy shaker jug makes the application simple, too.

Bottom Line:

Spa Essentials Chlorinating Concentrate Granules are an easy-to-use shock treatment that clarifies spa water and provides a strong chlorine boost.

The quick dissolving granules refresh cloudy water and destroy contaminants without altering pH. For a convenient spa shock, it’s a quality choice at a budget-friendly price.


8. Leisure Time 22337A Spa 56 Granules Chlorinating Tablets

Leisure Time 22337A Spa 56 Granules Chlorinating Tablets

These Leisure Time Chlorinating Tablets are effective spa chemicals. They are very similar to the previously reviewed Leisure Time Chlorinating Granules; the difference lies in volume.

The chlorinating granules are compatible with chlorine sanitizing systems. The Leisure Time Chlorinating Granules will also sanitize hot tub water and keep it clean and clear.

Leisure Time Spa 56 Granules are convenient for those whose hot tubs are exposed to direct sunlight. The granules are ideal for those looking for a little more control of the chemical balance than tablets allow with easy scoop control.

Keep in mind there will be a chlorine odor present with use. The bottle is two pounds, and the product dissolves and acts quickly.

Pros

  • Easy use and portioning
  • Low cost

Cons

  • Chlorine is less stable at high temperatures
  • Stops working after killing bacteria
  • Unpleasant odor

 

 

What customers are saying?

According to customer reviews, these Leisure Time chlorinating granules work very well to revitalize spa water. Users mention the tablets dissolving quickly to provide a strong chlorine sanitizing effect.

Many state the product makes their spa water clear and fresh again after heavy bather loads. Some do not have an occasional stronger chlorine odor right after use.

Bottom Line:

Leisure Time 22337A Spa 56 Granules is a fast-dissolving chlorine shock that clarifies and sanitizes spa water.

For tablets for hot tub and spa owners wanting an effective granular shock that won’t alter pH, Spa 56 is a top performer at a budget-friendly price point.


9. Leisure Time Spa Shock Renew Non-Chlorine Shock

Leisure Time Spa Shock Renew Non-Chlorine Shock

The Leisure Time Spa Shock Renew Non-Chlorine Shock is a useful secondary solution for your hot tub. Among the best hot tub chemicals, this solution acts as a shocking agent for your hot tub water.

The Non-Chlorine Shock is compatible with chlorine, bromine, ozone, and mineral purification systems.

The Leisure Time Spa Shock Renew is designed to keep water clean and clear. The Renew Shock from Leisure Time is perfect for anyone looking to supplement their hot tub stabilizer with an effective oxidizer.

It helps to keep your water clean and clear and reduces odors associated with irritating contaminants. The bottle is about two (2.2) pounds.

Pros

  • Reduces odors
  • Clears cloudy, contaminated water
  • Easy to distribute granule formulation

Cons

  • Cannot be used alone (use along with a stabilizer)

 

 

What customers are saying?

According to reviews, Users mention how it makes the water look clean and inviting again after heavy bather loads. They like that it shocks the water without altering pH levels.

Some do note an occasional slight bleach smell right after application. A few also say the granules tend to clump in the tub in very humid environments.

In general, though, most customers are pleased with Renew Shock’s ability to revitalize cloudy water. They say it’s easy to use and provides great value for the price.

Bottom Line:

The convenient 2.2 lb tub makes regular shocking easy and affordable. For cleaning product owners wanting a reliable non chlorine shock for hot tubs, Renew Shock is a top choice for revitalizing cloudy water.


10. Clorox Pool&Spa XtraBlue Chlorinating Granules

Clorox Pool&Spa XtraBlue Chlorinating Granules

The Clorox Pool&Spa Granules is the all-in-one water-dominating formula. The Xtra Blue Chlorinating Granules formula is an all-purpose sanitiser, shock agent, and algaecide.

The use of this product requires no additional solutions and hence covers all of your hot tub water needs. The Clorox Pool&Spa formula keeps water clean and clear through organic contaminant targeting.

The Clorox Pool&Spa Xtra Blue Chlorinating Granules is a great all-purpose cleaning solution for hot tubs. As has been noted, chlorine is less stable at higher temperatures, though this product comes with protection from sunlight and chlorine odor reduction.

Pros

  • Reduces eye irritation and chlorine odor
  • Compatible with salt pools and chlorine pools
  • Protected from sunlight

Cons

  • Chlorine destabilizes at higher temperatures.

 

 

What customers are saying?

According to reviews, Clorox XtraBlue works well to shock and sanitize pool water after heavy swim loads. Users mention the fast-acting formula makes their water sparkling clean again.

They like the extra strength compared to regular bleach products. Some do not have an occasional stronger chlorine odor right after application. A few also say the granules can clump together if stored in humid conditions.

Bottom Line:

The granular formula clarifies water and destroys contaminants without major pH swings. For a potent and affordable chlorine shock, XtraBlue is a reliable choice.


What Chemicals Do You Need For Your Hot Tub?

There are two necessary types of hot tub chemicals: stabilizers and oxidizers. Stabilizers are sanitisers like bromine and chlorine that effectively kill bacteria and maintain proper pH balance in the hot tub.

Sanitizers like bromine and chlorine cannot be used simultaneously. When you are stabilizing your pool, choose only one chemical of the two.

Bromine

As has been mentioned in the list of reviews, bromine is more stable than chlorine at higher temperatures. Because of this, bromine is typically the chemical of choice for stabilization. However, because of the effect that UV rays have on bromine, it is not ideal in every situation.

If your hot tub is directly exposed to sunlight, beaming it with UV rays daily, then you should consider using chlorine. Although it is less stable at higher temperatures, the stabilizing effect is similar as long as treatment is properly kept up.

Chlorine

It is a more active sanitiser than bromine as well. Chlorine, however, stops working after it has acted on bacteria, whereas the lifespan of bromine is longer and continues after initial sanitization.

Chlorine is also notorious for irritating skin and giving off an unpleasant, noxious odor, which not many people desire when relaxing in a hot tub. Not all people are irritated by it, and some situations even call for the use of chlorine, such as hot tubs exposed to direct sunlight.

In addition to the stabilizers, you’ll need an oxidizer. This is what shock agents are. The shock agents clear cloudy and contaminated water while the stabilizers work on killing bacteria and maintaining pH balances.

Some products on the market are both stabilizers and oxidizers, minimizing the steps needed to maintain a healthy hot tub.

Because of its importance, the stability of the water, and its effect on safety, pH test kits should also be used on your hot tubs. While they are not alone as a chemical of necessity for your hot tub, they’re essentially a mandatory accessory for stabilizers and oxidizers.

Testing should be carried out on your hot tub water frequently, nearly daily, if possible.

Tips on Choosing a Hot Tub Chemicals

The following is a list of tips for choosing hot tub chemicals:

  • Do research: If needed, read further about the differences between bromine and chlorine. Researching the two and getting a feel for the differences will go a long way. Additionally, use comparison charts between similar products to give yourself an idea of which product is best suited to your needs.
  • Ask others: Ask other hot tub owners what they use in their hot tubs and why. They’ll be able to provide you all sorts of information all the way down to why they chose a specific product. Also, search the web for hot tub communities/groups and see what they have to say about hot tub chemicals. If you have a question of your own, post it and wait for a reply.
  • Read reviews: Reviews are a straightforward way to get a general idea about a product’s success. Many people like to leave tips and pointers that aren’t noted by retailers in their reviews, which provides an extra layer of info. Just be wary of all reviews and take them with a grain of salt because they are mostly subjective.

Factors To Consider When Buying Best Hot Tub Chemicals

The factors to consider when buying hot tub chemicals are mostly centred on your hot tub model, hot tub location, and personal preference.

The first factor is your actual hot tub model. Not all hot tub models are created equal. Depending on your model, such as hot tubs with vinyl walls, you may or may not be able to use certain products. While most, if not all, of the products reviewed in our list are safe for all types of hot tubs, some products are not.

Be careful to read full descriptions about the contents of the stabilizers and oxidizers you are buying to be sure they are compatible with what you have. Again, they almost always will be, but it is safest to know.

Another important factor is the location of your hot tub. As has been noted throughout the review, if your hot tub sits under or is exposed to direct sunlight, you should be using chlorine because UV rays destabilize bromine.

If your hot tub is heavily shaded, covered, or inside, then the hot tub chemical choice is up to you (though we recommend bromine solutions). Bromine is also less intense, making it ideal for enclosed or less aerated places.

The final factor to consider is your personal preference. Some people are not tolerant of the chlorine solutions, citing distasteful odors and skin irritation. However, for those without intolerance to chlorine, the choice of how to stabilize and oxidize your pool is yours.

By knowing how much effort you are willing to put into the upkeep of your hot tub and what your bodily tolerance is for each cleaning solution, you’ll be able to narrow down your options markedly.

Best Hot Tub Chemicals FAQ

What are the most important chemicals to use in a hot tub?

The three most important chemicals for hot tub water cleaners are chlorine or bromine, pH adjuster, and total alkalinity increaser.

Chlorine or bromine sanitizes the water, the pH adjuster balances the pH, and the alkalinity increaser buffers the water against pH fluctuations.

How often should I add chlorine or bromine to my hot tub?

A: You should check and adjust the chlorine or bromine levels in your hot tub daily. Most experts recommend keeping the chlorine level between 1-3 ppm and bromine between 2-4 ppm. Add chlorine or bromine as needed to maintain proper levels.

What is shocking a hot tub and when should I do it?

Shocking a hot tub means adding extra chlorine or non-chlorine shock to oxidize contaminants and reactivate the sanitizer. You should shock your tub weekly and after heavy bather loads. Use chlorine shock or non-chlorine shock like potassium peroxymonosulfate.

How often should I test the pH and alkalinity of my hot tub water?

Test the pH and alkalinity at least 2-3 times per week. The ideal pH range is 7.2-7.6. Total alkalinity should be between 80-120 ppm. Test strips or digital testers make testing easy.

When should I change the hot tub water completely?

Drain and refill your hot tub every 3-4 months. More frequent water changes may be needed with heavy use. This removes built-up contaminants and minerals from the water.

Is oxidizer the same as shock?

No, an oxidizer is not the same as shock, an oxidizer is a chemical that promotes burning, while shock describes a violent impact force. They are distinct concepts, though oxidizers may contribute to explosive shock waves. But the terms are not alike.

Best chemicals for inflatable hot tubs?

Bromine tablets provide strong sanitation without the harshness of chlorine. Look for slow-dissolving tablets from trusted brands like Leisure Time or SpaGuard.

Are hot tub chemicals safe?

Hot tub chemicals are safe when used properly according to the manufacturer’s directions. Always wear gloves and eye protection when handling chemicals. Store chemicals securely out of reach of children and pets.

Conclusion

In conclusion, bromine and chlorine hot tub chemical solutions are ideal and necessary for the healthy upkeep of your hot tub. We’ve compiled the best reviews, important tips, and factors for choosing the best hot tub chemicals right here to help you work through the buying process smoothly.

Getting the right product for your hot tub is essential. Armed with the best spa chemicals reviews and other information provided, you’re ready to tackle the task and keep your hot tub clean and ready to go. Relaxation can wait no longer. Get your hot tub chemicals hot tub water cleaner ASAP!

Hot Tub Chemicals - 8.5

8.5

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