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Pool Chlorine and Bromine: Effective Sanitizers for Clean, Safe Water
Maintain a sparkling, healthy pool or spa with Doheny's professional-grade pool chlorine and bromine products. Whether you need fast-acting chlorine or gentle bromine, our wide selection of sanitizers keeps your water free from bacteria, algae, and harmful microorganisms. Choose from chlorine tablets, granular chlorine, skimmer sticks, and bromine tablets—all designed for optimal pool and spa care.
- Pro-grade chlorine tablets with built-in UV protection for long-lasting sanitization
- Fast-dissolving granular chlorine ideal for shock treatments
- Gentle bromine tablets perfect for spas and hot tubs
- Safe and convenient slow-dissolving skimmer sticks for consistent chlorine levels
Explore Our Pool Chlorine Options
3-Inch Chlorine Tablets: Large, slow-dissolving, and highly concentrated tablets provide steady, long-lasting chlorination. Perfect for low-maintenance pools, these tablets dissolve slowly in floating dispensers or in-line chlorinators. Doheny’s 3-inch tablets contain 99% active ingredients with a UV inhibitor to prevent chlorine loss from sunlight.
- Shop Doheny's 3-Inch Chlorine Tablets, 50 lb — Our most popular choice!
Skimmer Sticks: These long chlorine sticks fit right into your pool’s skimmer basket or floating dispenser and dissolve slowly for consistent chlorine delivery. Ideal for pools with strong circulation systems. If your pool uses a heater, avoid placing sticks in the skimmer basket; instead, use a floating dispenser to protect your equipment.
Granular Di-Chlor (Dichloro-S-Triazinetrione): Fast-dissolving chlorine that quickly raises chlorine levels without increasing pH. Contains cyanuric acid to stabilize your pool water and is perfect for shocking bacteria or rapid sanitation. Calcium-free formula prevents cloudy water.
1-Inch Chlorine Tablets: Smaller and quicker to dissolve than 3-inch tablets, offering faster results while maintaining effective sanitation. Suitable for floating dispensers and in-line chlorinators.
Bromine Tablets: A Gentle Alternative for Spas and Hot Tubs
Bromine is the preferred sanitizer for hot tubs and spas because it’s gentler on skin, eyes, and hair, and it remains stable in warmer water. Bromine dissolves slower than chlorine and works best with non-chlorine oxidizing shock treatments. Dispense bromine tablets with an automatic feeder or floating dispenser for even distribution.
Pool Chlorine FAQs
How are Doheny's 3-Inch Chlorine Tablets different?
Our tablets contain 99% pure Trichloro-S-Triazinetrione with 90% available chlorine, no fillers, and a built-in UV inhibitor that protects chlorine from sunlight to keep your pool sanitized longer with less product.
How do I use chlorine tablets safely?
Place tablets in a floating chlorinator or in-line feeder. Avoid direct contact with skin and always wear gloves and eye protection when handling chemicals.
What chlorine level should I maintain?
Maintain a chlorine level between 1.0 and 3.0 ppm for effective sanitation without irritation to swimmers or equipment.
What’s the difference between chlorine and shock?
Chlorine is used daily to sanitize your pool, while shock is a highly concentrated chlorine treatment that quickly removes contaminants like algae and chloramines.
When should I choose bromine over chlorine?
Use chlorine tablets for outdoor pools due to their fast action and cost-effectiveness. Choose bromine for spas, hot tubs, or indoor pools because it’s milder, lasts longer in warm water, and produces fewer odors.
Need help choosing the right sanitizer for your pool or spa?
Call our knowledgeable pool pros at 1-800-574-7665 for expert advice on the best chlorine or bromine products for your specific needs.
Chlorine & Bromine Guides
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Chlorine is by far the most popular sanitizer used in swimming pools. It is a powerful disinfectant that reliably destroys the bacteria, algae, and other contaminants that are commonly found in pool water. Chlorine is also used in municipal water systems to treat drinking water so that it is safe for consumption.
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How To Spas: Everything you need to know about your spa chemicals
You might think that the chemicals used for both pools and spas are the same; of course you would only be half right, there are slight differences which will be explained below. These two separate and yet enjoyable entities require the same maintenance to keep them clean and sanitary for use. Your friends and family want to be sure the spa they use for play or for simple relaxation has the right chemicals coursing through the water to insure their safety. It is crucial to keep track of issues such as bacteria and/or algae growth that can form if filtration and circulation are not properly maintained. Read on to find out more about spa chemicals and why they are so essential to this ‘pool of relaxation.’
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