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⬢ Pool Professionals
Professional-grade products. Expert support. Built for your business.

⬢ Pool Owners
Eco-friendly, easy-to-use solutions to keep your pool clean and clear.

⬢ Industrial
Efficient treatment & supply. Performance-focused operations support.

⬢ Municipal
Reliable solutions & delivery. Sustainable treatment for public systems.

⬢ Dealers
Help your pool & spa customers with trusted, professional-grade products.

For Pool Pros:   Master pool chemistry & avoid costly mistakes with our guide.   

For Homeowners:   Let HASA be your year-round Pool Partner.   


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⬢ Pool Products
HASA has the chlorine, algaecides, and sanitizers you need to keep your pool or spa clean and clear.

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⬢ Hot Tub Products
Shop our full line of Hi-Temp spa care products, including Eco-Safe Clarifiers and pH Increasers.

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⬢ Ancillary Products
Our eco-friendly water treatments are science-backed and purposefully focused.

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⬢ Mini-Bulk Program
We deliver a premium 12.5% sodium hypochlorite solution for sanitizing commercial pools and large-scale water systems.

⬢ Blog
Learn from water chemistry experts.

⬢ Videos
Browse instructional how-to videos.

⬢ Safety Data Sheets
Download SDS sheets for HASA products.

⬢ Pool Chemical Calculator
Achieve balanced chemistry easily.

⬢ Orenda Academy
For water chemistry & professional pool management knowledge.

⬢ Events
Find HASA at an event near you.

⬢ Rewards
Explore our HASA loyalty rewards program.

Use the HASA Dealer Locator   See where our products are sold near you with this tool.   

⬢ About HASA
Learn about HASA's commitment via the returnable packaging model.

⬢ Careers
Explore open positions with HASA.

Clean Water For Life 

From backyard pools to water treatment plants, HASA products keep millions of gallons of water safe, clean and clear — one recycled bottle at a time. 

About HASA Water
See Water Treatment Products

Water We Treat Serves Homes, Businesses and Communities
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Swimming Pools

Find reliable, environmentally-friendly water treatment products for your personal pool or pool servicing business, as well as professional-grade water chemistry training material so you can solve any recreational water problem with expert solutions.

Clean Confidently
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Industrial Sites and Municipalities

Source high-quality water treatment chemicals and efficiently manage your water supply with the freshest products, reliable delivery and a sustainable supply chain solution.

Set the Sanitization Standard
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Distributor Partners

Exceed customer expectations, build trust, and enhance credibility with our products, designed to solve a variety of pool water quality challenges while reducing waste with 100% recyclable, returnable bottles.

Stock Your Store
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14
fewer plastic gallons per pool professional in landfills each day
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12.5
PPM
of free chlorine in 10,000 gallons—delivered by a single gallon of HASA’s 12.5% liquid chlorine
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Driven by Safety, Committed to Sustainability

HASA works to ensure every drop of water we encounter is safe, clean and clear, and never at the expense of our environment. From our chlorine production process to our bottle recycling system, reducing our carbon footprint and protecting the planet is a priority at every step.

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0
binding agents, cyanuric acid, or other additives in our liquid chlorine
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60
years of providing safe, clean, and clear water

Accurate Pool Chemistry, Powered by Orenda

Real-Time Water Balance with The Orenda Calculator®

Monitor and fine-tune your pool water chemistry with the Orenda Calculator® — now accessible right from HASA. This trusted tool helps pool professionals and homeowners measure and balance key parameters like pH, alkalinity, calcium hardness, and LSI in real time.

Built by Orenda Technologies, part of the HASA family, this calculator supports cleaner, safer, and more sustainable water care.

Use The Calculator
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Beyond Liquid Chlorine and Acid

Pool Products

Prevent pool problems beyond what chlorine and acid can handle by supplementing with specialty chemicals.

Shop Pool Care

Hot Tub Products

Sanitize, disinfect and keep spas and hot tubs luxuriously clean with our designated range of Hi-Temp water care products.

Explore Hi-Temp

Municipal and Industrial Products

Source industrial-grade water treatment solutions like premium low-salt sodium hypochlorite and muriatic acid to keep water free of microbes, algae, and other issues

See HASA Solutions
I like liquid chlorine because it is effective. Whether I am shocking a pool, treating algae, or removing mold from pool tiles, liquid chlorine is my go-to; it is easy to use and powerful.
David Van Brunt
Service Professional and host of the Pool Guy Podcast Show

The Difference is Experience

Since 1964, HASA has pioneered the water treatment industry as a leading producer and distributor of high-quality, environmentally-friendly products for all water. Guided by the ethos that every drop of water we touch should be reliably safe, clean and clear—from family pools to industrial plants to city-wide water systems—we put safety at the center of everything we do. With seven production facilities across the western United States, we’re proud to be a trusted, technology-forward water treatment provider and partner to our diverse customer base. As a player in the water ecosystem for 60 years and counting, we continue to champion sustainable practices while keeping plastic waste out of our landfills to ensure a cleaner and greener future.

See the HASA Advantage
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Orange Goes All Day

Explore our library of resources to learn more about water chemistry, find details on our products and services, or connect with a member of our team to discuss your specific water treatment and maintenance questions.
 Have a water chemistry question?

Find Answers
 Looking for pool or hot tub maintenance help?

Explore Pool Tips

 Want to speak with an expert?

Find a Local HASA Rep