Make the Switch to Liquid Chlorine for Pools

Achieving balanced, healthy, and clear pool water has never been simpler thanks to liquid chlorine.

HASA Sani-Clor® sodium hypochlorite is the easiest, quickest, and most effective 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.

Upgrade Your Pool Routine

Highest Available Chlorine

Our liquid chlorine delivers the highest available chlorine concentration, ensuring robust sanitization with superior efficacy thanks to our proprietary filtration methods that remove any impurities that can degrade or destabilize the finished product.

Fast Acting

The liquid formulation of HASA Sani-Clor® disperses rapidly and provides instant disinfection upon application.

Safe to Use and Transport

Engineered with safety as a priority, HASA CHLOR is designed for secure handling and transportation.

No Unwanted By Products

HASA Sani-Clor® contains binding agents or additives, helping prevent CYA and calcium accumulation to protect pool surfaces and extend equipment longevity.

Budget-Friendly Solution

Thanks to its high purity and efficient performance, HASA Sani-Clor® delivers an economical sanitization solution, particularly when coupled with automatic liquid chlorine feeders for optimized application.

The History of Liquid Chlorine

Liquid chlorine has been a reliable and time-tested sanitization solution for decades, trusted for both pools and drinking water. First introduced as a water disinfectant in the early 1900s, it quickly became the gold standard for killing harmful bacteria and algae. Its effectiveness and safety have been consistently proven, making it a staple in water treatment systems worldwide.

Unlike other sanitizers, liquid chlorine doesn’t add unnecessary stabilizers like cyanuric acid and offers the quickest, most effective available chlorine.. This helps maintain safe, clean, and clear water without the buildup of chemicals that can lead to over-chlorination. As an EPA-approved solution, liquid chlorine remains one of the most effective choices for maintaining healthy swimming conditions.

Liquid Chlorine: The Best Choice for Pool Professionals & Homeowners

Liquid chlorine for swimming pools offers unmatched sanitization efficiency, easier water chemistry balancing, and long-term cost savings. For pool service professionals managing multiple routes and homeowners seeking pristine, safe water, liquid pool chlorine eliminates the hidden costs and chemical imbalances caused by tablet-based systems.

The Hidden Cost of Trichlor Tablets

Trichlor tablets may seem convenient, but they introduce cyanuric acid with every dose. This accumulation creates a cascade of water chemistry problems that demand constant correction and, eventually, costly interventions.

The Financial Impact of CYA: Draining vs. Switching

When cyanuric acid levels reach 300 ppm, which can happen after using just 50 pounds of 90% trichlor tablets, the pool is essentially unable to kill algae and bacteria effectively, even with elevated chlorine levels.

Once CYA levels become elevated, the only solution is to partially or completely drain the pool.

To reduce CYA from 300 ppm to a safe 30 ppm in a 10,000-gallon pool, you need to drain a staggering 90% of the water. This process can be:

Time-consuming, removing pools from service and causing pool downtime on sunny days
Environmentally taxing, contributing to water waste in drought-prone regions

For pool professionals, this translates to lost revenue, dissatisfied clients, and increased operational costs. For homeowners, it means unexpected expenses and potentially weeks without a usable pool.

Switching to liquid swimming pool chlorine reduces the risk of CYA buildup, allowing you to maintain balanced water chemistry without draining, using costly supplemental treatments, or performing complex water chemistry corrections.

Make the switch today

How Liquid Swimming Pool Chlorine Maintains Better Water Balance

By nature, liquid chlorine for swimming pools offers a more balanced pH than solid chlorine alternatives, such as trichlor tablets.

HASA Sani-Clor® contains no cyanuric acid or calcium, making it the cleanest and most reliable choice for sanitization. Its formulation reduces CYA buildup and pH disruption commonly caused by trichlor tablets, which require regular chemical corrections to restore water balance.

Liquid chlorine for swimming pools provides distinct water chemistry balance benefits, such as:

No pH disruption

Trichlor tablets have a low pH, requiring frequent pH-balancing chemical additions. Since liquid pool chlorine is less acidic, it helps maintain stable water chemistry and lowers the need for supplemental treatments.

Faster-acting sanitization

Our high-concentration, ultra pure liquid chlorine begins disinfecting immediately upon entering the water, unlike tablets, which dissolve slowly and unpredictably. This provides more reliable and consistent sanitization.

Better cost efficiency

While tablets may seem cheaper upfront, chlorinated liquid for pools proves to be a superior long-term investment by eliminating the hidden costs associated with corrective chemicals, premature water replacement, and increased maintenance.

Learn About Water Chemistry

Browse our help center for commonly asked questions about creating safe, clean and clear water.

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Looking for warranty information? Register your HASA Liquid Feeder online today.

Command Higher Service Rates with Unmatched Expertise

Customers don't just pay for routine maintenance; they pay for expertise. With HASA's comprehensive educational resources and direct access to our skilled water chemistry experts, you gain access to advanced water chemistry knowledge that builds trust and justifies premium pricing.

With HASA , you will be able to:

Confidently explain the science behind liquid chlorine to clients
Showcase crystal-clear, algae-free pools that reflect your skill
Reduce service callbacks caused by water quality issues

Streamline Operations & Reduce Costs

Although tablets can be useful for providing simple sanitization solutions between service appointments, long-term use of tablets can require more frequent pH adjustments, additional balancing chemicals, and frequent troubleshooting. Liquid chlorine simplifies your workflow with:

Fewer products to carry: Eliminate the need for pH increasers and extra stabilizers
Faster service stops: Test, measure, dilute, apply and move on quickly to get the most out of your day
Reduced equipment wear: Avoid the corrosion from high CYA and scaling caused by elevated calcium levels.

Differentiate Your Pool Care Business with Sustainability

For our West Coast customers, HASA's returnable, reusable 4x1 gallon cases demonstrate your commitment to sustainability while reducing plastic waste. This positions your business as forward-thinking and responsible, qualities that resonate with today's eco-conscientious customers.

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 HASA Liquid Feeder™: Daily, Hands-Free Sanitization

For pool professionals seeking to enhance efficiency, the HASA Liquid Feeder™ system is the ideal liquid chlorine feeder for your swimming pool. It provides an automated solution for daily sanitization, multiplying the benefits of liquid chlorine by ensuring consistent, hands-free dosing. This system simplifies maintenance and helps maintain optimal water balance.

"The easy-to-install liquid feeder system from HASA is inexpensive and compact. It's a great way to feed chlorine into your pool without the side effects of 3″ tabs. It reduces the drop in pH that comes along with tab feeders, making chemical balancing easier for even the most novice customer."

-Great White Pool Service in Boise, ID

Learn More About the Liquid Feeder

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Frequently Asked Questions

How does liquid chlorine compare to trichlor tablets in terms of cost?
Can I use liquid chlorine if I currently use trichlor tablets?
Will liquid chlorine damage my pool equipment or surfaces?

No. HASA Sani-Clor® liquid chlorine is safe for all pool types and equipment when incorporated according to the specifications, including salt systems. Unlike trichlor tablets, which can cause low pH and alkalinity due to their acidic nature, liquid chlorine maintains balanced water chemistry and protects your investment. It is important to note that you should never add liquid chlorine directly into the skimmer to prevent damaging equipment.
How do I store and transport liquid chlorine safely?

HASA Sani-Clor® is available in returnable, reusable 4x1 gallon cases designed for safe stacking and transport. Store in a cool, dry, well-ventilated area away from direct sunlight and incompatible chemicals. We also recommend using secondary containment in storage rooms and vehicles to help protect incompatible chemicals from interacting. Our "No-Glug Jugs®" design simplifies pouring and minimizes splashing while our returnable 4x1 gallon cases can serve as secondary containment solutions. For detailed safety guidelines, download our Handling Safety Sheet.
Is liquid chlorine better for the environment than trichlor tablets?

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

Empower Your Business with HASA's Educational Resources

HASA is committed to being your strategic partner, not merely a supplier. We’ve developed a wide variety of quick reference one-sheets, designed to equip you with the knowledge required to maximize the performance of sodium hypochlorite and drive your business forward. These valuable resources are meticulously crafted to enhance your expertise, ensuring optimal product application and superior service delivery.

View Our Educational Resources

Transporting HASA Sani-Clor^®?

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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.

Make the Switch to Liquid Chlorine for Pools

Why HASA’s Liquid Chlorine Beats Trichlor Tablets

Highest Available Chlorine

Fast Acting

Safe to Use and Transport

No Unwanted By Products

Budget-Friendly Solution

The History of Liquid Chlorine

Liquid Chlorine: The Best Choice for Pool Professionals & Homeowners

The Hidden Cost of Trichlor Tablets

The Financial Impact of CYA: Draining vs. Switching

How Liquid Swimming Pool Chlorine Maintains Better Water Balance

No pH disruption

Faster-acting sanitization

Better cost efficiency

Learn About Water Chemistry

Download SDS Sheets

Find Your Rep

Register Your Warranty

Use the Liquid Chlorine for Pools the Pros Trust

Command Higher Service Rates with Unmatched Expertise

Streamline Operations & Reduce Costs

Differentiate Your Pool Care Business with Sustainability

Role of HOCl

HASA Liquid Chlorine vs. Tablets: The Clear Choice

The HASA Liquid Feeder™: Daily, Hands-Free Sanitization

Frequently Asked Questions

How does liquid chlorine compare to trichlor tablets in terms of cost?

Can I use liquid chlorine if I currently use trichlor tablets?

Will liquid chlorine damage my pool equipment or surfaces?

How do I store and transport liquid chlorine safely?

Is liquid chlorine better for the environment than trichlor tablets?

The HASA Liquid Feeder™ Sanitizes Daily Hands Free

HASA Liquid Feeder™ Step-by-Step Installation Video

Empower Your Business with HASA's Educational Resources

Eco Friendly Solution

Grow Your Business

HASA Liquid Feeder™

HASA Pro Rewards™

Managing Your Liquid Assets

Packaged Products

Pool Owner Custom Information

Recyclable Product Delivery Method

Sani-Clor® Liquid Sanitizer

Transporting HASA Sani-Clor®?

Join HASA Pro Rewards™

Earn with Every Purchase on the HASA Pro Rewards™ App

The HASA Liquid Feeder^™Sanitizes Daily Hands Free

HASA Liquid Feeder^™ Step-by-Step Installation Video

HASA Liquid Feeder^™

HASA Pro Rewards^™

Sani-Clor^® Liquid Sanitizer

Transporting HASA Sani-Clor^®?

Join HASA Pro Rewards^™