Finding the best chlorine granules suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. 2-Pack Chlorine Dichlor Granules sanitizer shock for Spa, Hot Tub, Pool - 2 x 2 lb. bottles (4 lbs. total)
Feature
Two 2-Pound BottlesQuick Dissolving Granules
Fresh, Premium Quality
Maximum Strength (99% dichlor)
No scale-causing fillers
Description
Chlorine Sanitizer Granules- sodium dichlor stabilized chlorine is used for shocking or superchlorination of spa and pool water. Dichlor is also an ideal shock for occasional use with alternative sanitizers. Clears-up many water problems quickly. Our formulation is fast-dissolving to save time and effort, unlike some other brands which dissolve slowly. This maximum-strength dichlor is formulated for hot tubs, and contains no scale forming minerals, or insoluble fillers. Product notes: Guaranteed fresh, best quality for maximum potency. Active ingredient is sodium dichloro-s-triazinetrione dihydrate, 99%.2. Spa Choice 472-3-5081-02 Chlorine Granules for Spas and Hot Tubs, 5-Pound, 2-Pack
Feature
Dissolves Quickly and CompletelyStabilized Spa Chlorine
56% Available Chlorine
Controls Algae
Kills Bacteria
Downloadable User Guide Available Under Product Information: Technical Specifications
Description
Spa Choice Sanitizing Granules are designed to dissolve quickly and completely. Chlorine granules provide a steady source of available chlorine to spa water to control algae growth, kill bacteria and destroy organic contaminants. Spa choice chlorine granules are stabilized to protect against ultraviolet radiation from the sun, increasing the life of your chlorine. This product is designed to dissolve quickly and completely providing a steady source of available chlorine to control the growth of algae, kill bacteria and destroy organic contaminants. DIRECTIONS FOR APPLICATION: Broadcast the product evenly over a wide area in the deepest part of the spa with water circulating. F DIRECTIONS OR SPA AND HOT TUB USE: Each level teaspoon (0.17 ounces) of this product will provide approximately 1.4 ppm available chlorine in 500 gallons of water. Using an appropriate test kit, test and adjust the water to the following values: pH 7.2-7.8, total alkalinity 60-100 ppm, calcium hardness 200 ppm minimum. Maintain these conditions for proper spa and hot tub operation by frequent testing with a test kit. Do not allow cyanuric acid level to exceed 150 ppm. It is recommended that spas and hot tubs be drained every 30-90 days. More often under heavy use. Consult manufacturers recommendations concerning the compatibility of chlorine sanitizers with their equipment. Some oils, lotions, fragrances and cleaners may cause foaming or cloudy water and may react with chlorine sanitizers to reduce their efficacy. DIRECTIONS FOR START-UP (FRESHLY FILLED) 1. Turn on the circulation system and ensure that it is operating properly. 2. Add 6 teaspoons of this product for each 500 gallons of water. Check the free available chlorine (FAC) and, if below 4-5 ppm, repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine. DIRECTIONS FOR REGULAR USE: Turn on the circulation system and ensure that it is operating properly. Scatter approximately 3 teaspoons per 500 gallons of this product over the surface of water. Always use a clean dry spoon. Test for FAC and add additional product, if necessary, to attain 4-5 ppm FAC. Maintain 1-3 ppm FAC while the spa or hot tub is in use. After each use, shock treat with 9 teaspoons per 500 gallons water to control odors and algae. Repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine.3. Spa Essentials 32130000 Chlorinating Concentrate Granules for Spas and Hot Tubs, 2-Pound
Feature
Granular stabilized chlorinatorFast acting
Quick dissolving
Acts as a sanitizer and an oxidizer; no need for two products
May be added directly to spa, no pre-dissolving needed
Description
Spa Essentials Chlorinating Concentrate is a spa and hot tub sanitizer. Customers prefer this product because it is a fast acting granular stabilized chlorinator that acts as a sanitizer and an oxidizer. This is a hard-working product that will kill and control bacteria - resulting in water that's a pleasure to soak in. Spa Essentials brand chemicals are the easiest to use: reach and maintain beautiful spa water. 97% Sodium dichloro-s-triazinetrione.4. Kem-Tek 005 Pool and Spa All-in-One Concentrated Chlorinating Granules, 5-Pound
Feature
For everyday pool sanitization and super chlorinationSuper concentrated formula goes 3 times farther than calcium based products
Stabilized to reduce chlorine loss to the sun's UV rays
Will not cloud water raise ph or create calcium deposits on tile
Leaves no chalky residue on pool bottom
5. Leisure Time 22337 Spa 56 Chlorinating Granules, 2-Pound
Feature
Specifically formulated for spa and hot tubsMaintains clean, clear sanitized water
EPA approved
Description
Spa 56 Chlorinating Granules provides a reliable and easy to use source of concentrated chlorine toeffectively sanitize and disinfect hot water. Can be used as part of the Simple Spa Care Program. EPA approved, and specifically formulated for spas and hot tubs. Start Up: See product label for complete application instructions. Tips: Shocking the spa after each use will destroy organic bather waste.6. Nava Chlorinating Di-Chlor Granules - 50 lb. Bucket
Feature
100% Manufactured in the USAEPA Approved
Easy Open Bucket Lid
4-in-1: Sanitizer, Algaecide, Stabilizer and Shock all in one!
56% Stabilized Chlorine, Active Ingredient Sodium dichloroisocyanurate, dihydrate
Description
Nava's 50-lb Multi-Functional Chlorinating Granules is a Sanitizer, Shock, Stabilizer and Algaecide - all in one product! Granules are pure, quick dissolving, and protect against UV sunlight, keeping your pool water safe and clean. Quick Dissolving Granules are manufactured in the USA. Calcium free which will prevent clouding. The easy open bucket lid is child resistant, snapping open without the need for any tools. Nava's Multi-Functional Chlorinating Granules are available in 5 lb., 15 lb., 25 lb. or 50 lb. bucket sizes. Granules are white in color.
Directions for Use:
Broadcast 4 ounces of granules into the deep end of the pool as initial treatment, per 10,000 gallons of pool water (while pump is running). Using a test kit, check that the residual chlorine levels are between 1-3 ppm. Use a pool brush to disperse granules that may have settled to the pool floor. Never allow undissolved product to rest in contact with bleachable pool surfaces. If the test kit says you are low, repeat the last process. Daily dosage is 2-3 ounces of granules per 10,000 gallons of pool water. After use of these chlorinating granules, it is recommended that using our algaecide be added on a weekly basis to keep algae forming. Should not enter the pool until chlorine is below 3ppm
7. Rx Clear 99% Sodium Dichlor Stabilized Granular Chlorine for Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas (50-Pounds)
Feature
CLEAR WATER FOR SAFE SWIMMING - Swimming in crystal clear water does not mean your skin has to suffer. The granular chlorine is 99% sodium diclor making a relaxing swim not as harsh.LONG LASTING - Dichlor resists UV light, lasting longer than other types of chlorine due to built in stabilizer
DISSOLVES QUICKLY - Add 1 oz to your pool for every 5,000 gallons your pool contains, daily for quick water treatment
FEWER CHEMICALS NEEDED - Our dichlor is pH neutral, meaning less chemical adjustments to be made by you!
GENTLE ON LINERS - Dissolves in a 4-foot column, no need to worry about bleaching your liner as with chlorine tabs
Description
Compared to Pace, Bioguard and Sun the Rx Clear brand provides the same performance at a much lower cost.
Item Details:
- 50 pound bucket of granular chlorine
- Rx Clear granular chlorine is 99% sodium Dichlor
- Dichlor resists UV light, lasting longer than other types of chlorine
- pH neutral, saving time and money on corrective chemicals
- It is 100% soluble-- Can be added directly to skimmer with no calcium residue
- 1 oz treats 5,000 gallons daily
8. Clorox Pool&Spa 23006CLXCA Xtra Blue Chlorinating Granules 6-Pound
Feature
All purpose sanitizer, shock and algaecideDescription
Clorox Pool&Spa XtraBlue Chlorinating Granules protect against algae and bacteria for water that stays clean, clear & free of visible algae. Protected against sunlight to last longer.9. Spa Choice 472-3-5081 Chlorine Granules for Spas and Hot Tubs, 5-Pound
Feature
Dissolves Quickly and CompletelyStabilized Spa Chlorine
56% Available Chlorine
Controls Algae
Kills Bacteria
Downloadable User Guide Available Under Product Information: Technical Specifications
Description
Spa Choice Sanitizing Granules are designed to dissolve quickly and completely. Chlorine granules provide a steady source of available chlorine to spa water to control algae growth, kill bacteria and destroy organic contaminants. Spa choice chlorine granules are stabilized to protect against ultraviolet radiation from the sun, increasing the life of your chlorine. This product is designed to dissolve quickly and completely providing a steady source of available chlorine to control the growth of algae, kill bacteria and destroy organic contaminants. DIRECTIONS FOR APPLICATION: Broadcast the product evenly over a wide area in the deepest part of the spa with water circulating. F DIRECTIONS OR SPA AND HOT TUB USE: Each level teaspoon (0.17 ounces) of this product will provide approximately 1.4 ppm available chlorine in 500 gallons of water. Using an appropriate test kit, test and adjust the water to the following values: pH 7.2-7.8, total alkalinity 60-100 ppm, calcium hardness 200 ppm minimum. Maintain these conditions for proper spa and hot tub operation by frequent testing with a test kit. Do not allow cyanuric acid level to exceed 150 ppm. It is recommended that spas and hot tubs be drained every 30-90 days. More often under heavy use. Consult manufacturers recommendations concerning the compatibility of chlorine sanitizers with their equipment. Some oils, lotions, fragrances and cleaners may cause foaming or cloudy water and may react with chlorine sanitizers to reduce their efficacy. DIRECTIONS FOR START-UP (FRESHLY FILLED) 1. Turn on the circulation system and ensure that it is operating properly. 2. Add 6 teaspoons of this product for each 500 gallons of water. Check the free available chlorine (FAC) and, if below 4-5 ppm, repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine. DIRECTIONS FOR REGULAR USE: Turn on the circulation system and ensure that it is operating properly. Scatter approximately 3 teaspoons per 500 gallons of this product over the surface of water. Always use a clean dry spoon. Test for FAC and add additional product, if necessary, to attain 4-5 ppm FAC. Maintain 1-3 ppm FAC while the spa or hot tub is in use. After each use, shock treat with 9 teaspoons per 500 gallons water to control odors and algae. Repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine.10. Clorox Pool&Spa Chlorine Stabilizer, 4-Pound 10004CLX
Feature
Stabilizes chlorine to maximize sanitizer performancePrevents chlorine loss from sunlight degradation
Enables chlorine to last longer
Description
Clorox Pool&Spa Chlorine Stabilizer reduces chlorine degradation caused by sunlight. Promotes maximum effectiveness of all chlorine sanitizers and works in all types of pools. Great for salt pools11. Hot Tub Things Chlorine Granules 2 Pounds - Effective Spa Water Disinfectant
Feature
The leading hot tub chlorine sanitizer. Say goodbye to bacteria and say hello to clean water!America's #1 Trusted Brand of Hot Tub Chemicals
Safety Tested to Assure Quality, Guaranteed Performance
Formulated Exclusively for Hot Tubs And Made from the Purest Chemicals Available
Compare to Leisure Time Spa 56 Chlorinating Granules
Description
When used as directed, this product is effective as a spa and hot tub water disinfecting agent.Use: Use one teaspoon of this product per 100 gallons of water. May be needed on a nightly basis in a heavily used spa or as infrequently as once a week in a moderately used spa.
Check levels of chlorine using your standard Chlorine test strip. Keep a residual of 3-5 ppm of available chlorine for optimal hot tub balance.
About Us
Hot Tub Things is your premier source for spa parts and hot tub parts online. With over 30 years of experience in the hot tub industry, we are committed to high quality, low prices, and phenomenal customer service. We'd like your experience at Hot Tub Things to be a positive reflection of our commitment to these values. Whether you are looking for a custom spa cover, a hot tub ozonator, a spa cover lift, spa chemicals, a spa heater, a hot tub filter, a spa circuit board, or spa accessories, you have come to the right place!
12. Spa Choice 472-3-3031 Chlorine Granules for Spas, 2-Pound
Feature
Dissolves Quickly and CompletelyStabilized Spa Chlorine
56% Available Chlorine
Controls Algae
Downloadable User Guide Available Under Product Information: Technical Specifications
Description
Spa Choice Sanitizing Granules are designed to dissolve quickly and completely. Chlorine granules provide a steady source of available chlorine to spa water to control algae growth, kill bacteria and destroy organic contaminants. Spa choice chlorine granules are stabilized to protect against ultraviolet radiation from the sun, increasing the life of your chlorine. This product is designed to dissolve quickly and completely providing a steady source of available chlorine to control the growth of algae, kill bacteria and destroy organic contaminants. DIRECTIONS FOR APPLICATION: Broadcast the product evenly over a wide area in the deepest part of the spa with water circulating. F DIRECTIONS OR SPA AND HOT TUB USE: Each level teaspoon (0.17 ounces) of this product will provide approximately 1.4 ppm available chlorine in 500 gallons of water. Using an appropriate test kit, test and adjust the water to the following values: pH 7.2-7.8, total alkalinity 60-100 ppm, calcium hardness 200 ppm minimum. Maintain these conditions for proper spa and hot tub operation by frequent testing with a test kit. Do not allow cyanuric acid level to exceed 150 ppm. It is recommended that spas and hot tubs be drained every 30-90 days. More often under heavy use. Consult manufacturers recommendations concerning the compatibility of chlorine sanitizers with their equipment. Some oils, lotions, fragrances and cleaners may cause foaming or cloudy water and may react with chlorine sanitizers to reduce their efficacy. DIRECTIONS FOR START-UP (FRESHLY FILLED) 1. Turn on the circulation system and ensure that it is operating properly. 2. Add 6 teaspoons of this product for each 500 gallons of water. Check the free available chlorine (FAC) and, if below 4-5 ppm, repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine. DIRECTIONS FOR REGULAR USE: Turn on the circulation system and ensure that it is operating properly. Scatter approximately 3 teaspoons per 500 gallons of this product over the surface of water. Always use a clean dry spoon. Test for FAC and add additional product, if necessary, to attain 4-5 ppm FAC. Maintain 1-3 ppm FAC while the spa or hot tub is in use. After each use, shock treat with 9 teaspoons per 500 gallons water to control odors and algae. Repeat as needed. Re-entry into treated spas is prohibited above levels of 3 ppm of chlorine.13. HTH 22002 Ultimate Mineral Brilliance Chlorinating Granules, 5 lb
Feature
Hth ultimate mineral brilliance chlorinating granules, 5lbs is an effective sanitizer for swimming poolsThis enhanced formulation contains a built-in clarifier, stain and scale preventer and water softener
7-IN-1. Sanitizes for brilliantly clear water. Controls algae. Clarifies water. Fast Dissolving. Softens water
Description
hth ultimate mineral brilliance chlorinating granules, 5lbs is an effective sanitizer for swimming pools, that provides brilliantly clear water, controls algae and clarifies water. This enhanced formulation contains a built-in clarifier, stain and scale preventer and water softener. Finally, it provides Visible Blue Action, so you know it is working.14. Pool Essentials 25506ESS Shock Treatment, 1-Pound (Pack of 6)