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Pool Professionals
Elevate yourself as a pool pro with top-quality products, expert resources and professional business support from HASA.

Pool Owners
Keep your pool safe, clean and clear with eco-friendly and easy-to-use water treatment solutions.

Municipal
Efficiently manage your water supply with the freshest products, predictable delivery and a sustainable supply chain partner.

Industrial
Efficiently manage your water treatment with the freshest products, predictable delivery and a sustainable supply chain partner.

Dealers
Help customers confidently manage their pool and spa water quality with trusted, professional-grade products.

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Pool Products
HASA has the products you need to take care of your swimming pool or spa, whether you're looking for chlorine, algaecides, sanitizers, pool shocks, and more.

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Hot Tub Products
We offer a full line of hi-temp spa care products, including Eco-Safe Water Clarifier, Hi-Temp Eco-Safe Water Clarifier, and Hi-Temp Spa pH Increaser.

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Ancillary Products
We have a narrow and focused line of eco-friendly water treatments; each of which has its formula firmly based in science.

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Mini-Bulk Program
HASA offers a safe, reliable & premium 12.5% sodium hypochlorite solution to sanitize and maintain larger commercial swimming pools and major water systems.

Blog
Learn from water chemistry experts.

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Browse instructional how-to videos.

Safety Data Sheets
Download SDS sheets for HASA products.

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Explore our HASA loyalty rewards program.

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Take courses to upgrade your water chemistry and professional pool management knowledge.

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

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Explore open positions with HASA.

Choose Liquid

Looking for the most beautiful, sparkling blue pool?

HASA Sani-Clor® sodium hypochlorite is the optimal way to sanitize and shock! Liquid chlorine has been a go-to choice for disinfecting swimming pools and hot tubs for more than half a century.

Why choose HASA Sani-Clor®over trichlor tablets:

  • Highest available chlorine
  • Fast acting
  • Safe to use and transport
  • No cyanuric acid (CYA)/no calcium
  • Best cost per use

Do the Math!
HASA Sani-Clor® vs. Trichlor Tablets

Liquid sanitizer, with no added CYA, does a better job cleaning and disinfecting the pool.

  • 1lb. of 90% available chlorine trichlor in 10,000 gallons = 6 ppm of cyanuric acid (CYA)
  • Two 90% trichlor tablets equal 1 pound, so two tablets contribute 6 ppm of CYA in 10,000 gallons
  • Trichlor tablets have a pH of 2.9 to 3. This low pH will decrease both the pH and total alkalinity
  • The amount of sodium carbonate (soda ash) needed to keep pH and total alkalinity balanced for every pound of trichlor is 4.5 oz.
  • Two trichlor tablets used weekly will increase CYA by 24 ppm a month. 48 ppm in 2 months, 96 ppm in 4 months
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Benefits of Liquid

  • CYA of 30 ppm requires 2.25 ppm maintenance residual of free chlorine FC to effectively kill algae and bacteria. 50 ppm CYA requires 3.75 FC, 60 ppm CYA requires 4.5 ppm FC, 100 ppm CYA requires 7.5 ppm FC
  • 50 lbs. of 90% trichlor tablets equals 300 ppm CYA. 300 ppm CYA requires 22.5 ppm FC in order to effectively kill algae and bacteria.
  • The EPA maximum allowable for safe swimming is 4 ppm.

Draining the Pool

  • Drain and dilution is the most effective way to reduce CYA. In order to reduce 300 ppm down to 30 ppm in a 10,000-gallon pool, 90% of the average depth of the pool would need to be drained.
  • Always check with your local water district before draining pool and to ensure that ground water levels are not too high.
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Role of HOCl

  • With a CYA of 30 ppm and pH of 7.5 with 3 ppm FC, 97% of chlorine is bound to have CYA. Only 3% chlorine is available in pool water. .
  • 0.05 ppm of hypochlorous acid (HOCl) is needed to kill algae and bacteria. With pH of 7.5 half of the 3% available is HOCl and half is -OCl. 1.5% .
  • 2 ppm FC x 1.5% = 0.03 ppm HOCl (Not enough to kill algae) 
    • 3 ppm FC x 1.5% = 0.045 (Still not enough to kill algae)
    • 4 ppm FC x 1.5% = 0.06 (Algae is killed)

The value of HASA liquid sodium hypochlorite
over trichlor tablets is clear!
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It's time to Make the Switch to liquid chlorine!

Watch the HASA Heritage story and see how we can become your trusted partner!

Watch Video

The HASA Liquid Feeder™ Sanitizes Daily Hands Free

What Pool Pros are Saying:

“The easy to install liquid feeder system from HASA Pool is inexpensive and compact. It’s a great way to feed chlorine into your pool minus the side effects of 3″ tabs. It reduces the drop in pH that that comes along with tab feeders, making chemical balancing easier for even the most novice customer.”

-Great White Pool Service in Boise, ID

Get More Information Here
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HASA Liquid Feeder™ Step-by-Step Installation Video

Simple to use. Easy to install.

Learn about the HASA Advantage

We have an array of Quick Reference One-Sheets available for your reference. Get to know HASA’s sodium hypochlorite (liquid chlorine) offerings!

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Eco Friendly Solution

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Grow Your Business

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HASA Liquid Feeder™

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HASA Pro Rewards™

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Managing Your Liquid Assets

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Packaged Products

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Pool Owner Custom Information

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Recyclable Product Delivery Method

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Sani-Clor® Liquid Sanitizer

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Transporting HASA Sani-Clor®?

Download our Safety and Proper Materials Handling Tips

Now available in four different languages including English, Spanish, Vietnamese and Korean.

View Resources
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Join HASA Pro Rewards™

HASA Pro Rewards™ loyalty members receive special offers, perks, the latest news and more! Also, check out the new HASA Pro Rewards™ mobile app to easily scan HASA invoices—and accrue points for prizes & credit toward purchases.

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Access to Safe, Clean, and Clear water is a basic human need. HASA was founded on the legacy of delivering high quality products to meet this need, and we will continue this legacy with new sustainable practices through the next century and beyond.
Chris Brink
President & CEO, HASA, Inc.