Reliable Water Treatment You Can Trust

For more than 60 years, HASA has supplied high-quality sodium hypochlorite and water treatment chemicals to recreational, industrial, and municipal water markets, with a commitment to keeping families and communities safe.

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Who We Are

Since 1964, we’ve perfected the production of high-quality, ultra-pure sodium hypochlorite and other essential water treatment solutions, so every drop of water that families and communities touch is safe, clean, and clear.

As the premier source for bulk sodium hypochlorite sanitization and water treatment solutions, we control our supply chain from production to your door. That means 14 facilities across the Western United States, more than 850 employees, and a dedicated fleet delivering fresh, high-purity product just in time, every time.

With safety at the center of everything we do and dedicated support nationwide, we offer local and personalized expertise to pool professionals, distributors, municipalities, and industrial partners. It’s how we’ve earned our reputation as a trusted partner for more than six decades.

For Pool Professionals & Pool Owners

Source reliable, high-quality, and dependable water-treatment products for your pool service business.

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For Water Treatment Operators

Get effective and easy-to-use water treatment sanitization and products you can trust.

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For Distributor Partners

Enhance your reputation and build trust by consistently delivering premium, high-performance water treatment solutions.

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Our Signature Product

HASA Sani-Clor^®: The Gold Standard in Water Care

HASA Sani-Clor^® is our signature sodium hypochlorite solution and the industry standard for sanitization. It's fresh, local, and strong liquid chlorine that works immediately, filtered to remove impurities so it lasts longer and takes fewer gallons per treatment.

Fresh and Strong: Made in our own facilities and delivered by our own fleet, so it reaches you at full strength.

Filtered for Purity: HASA’s high-performance filtration and production process extends the product’s shelf life, so it lasts longer and takes fewer gallons per treatment.

No Added Stabilizer: Sodium hypochlorite doesn’t introduce cyanuric acid (CYA), so you sanitize without stabilizer buildup.

Returnable by Design: Delivered in our 4x1 deposit case, which customers return, we refill, and gets reused.

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Simple Products That Deliver Confident Outcomes

Safe, clean, and clear water for the communities we live in, with products built to work better, more simply and more safely.

Safety As Our Top Priority

From raw ingredients to production and delivery, safety comes first in everything we make and do. We’re making homes and communities safer every day, and doing it safely across all 14 facilities.

Knowledge You Can Lean On

From local reps to in-person and virtual training, our experts help you solve complex water challenges, simply.

End-to-End Expertise

We’ve built a team of in-house experts in water chemistry, professional pool care, and industrial and municipal water solutions, ensuring you have the knowledge you need to get the job done right.

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Built Around the Customers We Serve

Equipped and ready to meet our customers' needs

98% of our customers stay with HASA year after year
100M+ gallons of fresh, high-purity product delivered to customers every year
90K+ deliveries a year, made by our own team, on your schedule
50+ local reps who know your market and your water
14 facilities keeping production close to the customers we serve
675+ trucks and trailers dedicatd to getting product to your door
60+ years making homes and communities safer

Our Commitment to Sustainable Manufacturing and Distribution

We make caring for our planet a priority

Our commitment to the environment goes beyond legal compliance. From our high-performing, concentrated sodium hypochlorite solutions to our returnable container and bulk delivery systems, we’re always seeking better ways to reduce material waste and improve long-term sustainability.

In an effort to reduce our landfill contributions, our signature reusable 4x1 gallon deposit cases keep over 20 million plastic bottles out of landfills annually.

HASA's Family of Brands

HASA, along with Orenda^®, and Bio-Dex^® share one goal: making safe, clean, and clear water the standard for everyone. Together, we combine HASA's manufacturing and delivery strength with Orenda's science-driven approach to water chemistry and Bio-Dex's proactive pool and spa care products, so you get better tools, better training, and better results.

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To this day, over the 3+ year-long relationship we have enjoyed and are grateful for with HASA, our water systems enjoy a high level of compliance and potability due in large part to the proactive and professional service we have received from Christopher Cornish and HASA. They are always willing to help, even with larger projects and deliveries that are not currently under contract with them.

Brahman Conci

Operations Superintendent for the City Distribution Division of the San Francisco Water Department

Easily Master Pool Chemistry With Our Guide

Whether you're battling cloudy water, scaling, or algae growth, this free guide equips you with expert insights, actionable solutions, and proven strategies to streamline your maintenance routine and avoid costly mistakes.

Discover the Clear Difference with HASA

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 maintenance questions or water treatment needs.

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Reliable Water Treatment You Can Trust