Applied Biochemists Thio-Trine – Chlorine Neutralizer & Dechlorinator (401115A)

Instantly Neutralize Chlorine and Protect Pool Equipment

Quickly balance and dechlorinate your pool or spa water with Applied Biochemists Thio-Trine (401115A)—the professional-grade chlorine neutralizer trusted by service technicians and pool owners alike. This fast-acting sodium thiosulfate solution instantly eliminates chlorine and bromine residuals, making it ideal for pool maintenance, start-up adjustments, or water disposal.

Perfect for vinyl, plaster, fiberglass, and spa surfaces, Thio-Trine is a must-have for balancing water chemistry safely and efficiently—without affecting pH or alkalinity.

Fast-Acting Chlorine and Bromine Neutralizer

Whether you’re performing routine maintenance, opening a pool, or preparing for water replacement, Thio-Trine helps you take control of sanitizer levels immediately. The concentrated formula neutralizes both free and combined chlorine, allowing for accurate water testing and preventing overdosing from shock treatments.

Key Benefits

• Instantly neutralizes chlorine and bromine.

• Prevents equipment damage from over-chlorination.

• Allows accurate chemical readings after shock treatments.

• Safe for all pool and spa surfaces.

• Easy-to-measure liquid formula.

• Compatible with chlorine, bromine, and saltwater systems.

If your chlorine levels are too high or you need to drain water into the environment, Applied Biochemists Thio-Trine provides fast, effective control.

Ideal for Pool Start-Ups, Maintenance, and Closures

Chlorine levels can spike after super-chlorination, refills, or treatment errors. Thio-Trine lets you quickly reduce sanitizer concentrations to safe levels for swimming or discharge.

Use it to:

• Lower chlorine before refilling or rebalancing chemicals.

• Prepare pool water for safe backwashing or draining.

• Dechlorinate rinse or filter water before discharge.

• Recalibrate sanitizer levels for precision chemical balancing.

It’s an essential product for service techs, operators, and homeowners who want reliable control over chlorine and bromine residuals.

Safe for All Pool Types and Surfaces

Applied Biochemists Thio-Trine is gentle on surfaces and pool components. Its non-acidic, non-foaming formula is compatible with:

• In-ground and above-ground pools

• Spas and hot tubs

• Vinyl, plaster, fiberglass, and painted finishes

• Saltwater chlorine generators and cartridge filters

It dissolves instantly in water and won’t cloud or discolor the pool, even when used frequently.

Professional-Grade Sodium Thiosulfate Formula

The active ingredient, sodium thiosulfate, chemically converts chlorine into harmless chloride ions, neutralizing sanitizer levels within minutes. This allows immediate retesting and safe re-entry without waiting days for natural dissipation.

Each ounce of Thio-Trine treats roughly 10,000 gallons of water with 1 ppm chlorine, making it both efficient and cost-effective.

Typical Use Cases

• After shock treatments to rebalance chlorine quickly.

• Before adding sensitive chemicals like algaecides or clarifiers.

• During liner replacements or repairs, where chlorine must be neutralized before draining.

• For compliance with local regulations on wastewater discharge.

How to Use Applied Biochemists Thio-Trine

Using Thio-Trine is simple and precise.

For Reducing Chlorine Levels

1. Test chlorine level using a reliable pool test kit.

2. Add 1 oz per 10,000 gallons of water to neutralize approximately 1 ppm of chlorine.

3. Allow water to circulate for 1 hour, then retest.

4. Repeat as needed until desired chlorine level is reached.

Always start with smaller doses, retest frequently, and avoid overdosing—adding too much can completely eliminate sanitizer protection.

For Water Disposal

Add Thio-Trine before draining to neutralize chlorine and bromine, protecting plants, grass, and local waterways from chemical harm.

Compatible with All Sanitizer Programs

Thio-Trine works seamlessly with chlorine, bromine, and saltwater systems, as well as ozone or UV sanitation. It allows for faster maintenance cycles and minimizes downtime after shock treatments or high-chlorine adjustments.

It also ensures accurate chemical testing, as residual sanitizer won’t interfere with readings for pH, alkalinity, calcium, or metals.

Prevents Damage and Chemical Waste

Excess chlorine can lead to corrosion, liner bleaching, and surface damage. Using Applied Biochemists Thio-Trine prevents over-chlorination from causing costly repairs while saving water and reducing waste from unnecessary draining.

Because it’s concentrated and liquid, it dissolves instantly—no dust, residue, or scale left behind.

Product Specifications

Storage and Handling

Store tightly sealed in a cool, dry place away from direct sunlight and incompatible oxidizers. Keep out of reach of children. If spilled, rinse with water immediately. Follow all safety directions on the product label.

Do not mix directly with chlorine or shock products—always apply separately to circulating water.

Why Choose Applied Biochemists Thio-Trine

For over six decades, Applied Biochemists® has been a leader in professional pool chemistry, known for precision, purity, and consistent performance. Thio-Trine continues this legacy, providing dependable chlorine neutralization with maximum safety and simplicity.

Trusted by service pros and aquatic facilities across the U.S., it’s the go-to solution for fast dechlorination—whether adjusting levels, performing maintenance, or discharging water responsibly.

The Applied Biochemists Advantage

• Proven reliability and professional-grade results

• Safe for all water systems and finishes

• Concentrated, easy-to-measure liquid formula

• Manufactured to high purity standards for consistent potency

With Thio-Trine, you get control, compliance, and confidence in every drop.

Buy with Confidence from Benchmark Pool Supply

At Benchmark Pool Supply, we proudly carry authentic Applied Biochemists water treatment products trusted by pool professionals nationwide. The Thio-Trine Chlorine Neutralizer (401115A) gives you precise sanitizer control, instant results, and guaranteed safety for your pool, spa, and the environment.

We offer fast shipping, genuine products, and expert guidance so you can keep your pool perfectly balanced every time.

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Frequently Asked Questions

What does Thio-Trine do?

Applied Biochemists Thio-Trine instantly neutralizes excess chlorine and bromine, protecting pool surfaces, equipment, and swimmers.

How much Thio-Trine should I use?

Add 1 oz per 10,000 gallons of water to reduce chlorine by about 1 ppm. Retest after circulation and adjust if needed.

Can I use Thio-Trine in saltwater pools?

Yes. It’s fully compatible with saltwater chlorine generators, as well as standard chlorine and bromine sanitizing systems.

Is it safe for all pool surfaces?

Absolutely. The non-acidic, liquid formula is safe for vinyl, plaster, fiberglass, and all common pool finishes.

Can I swim immediately after adding it?

You can swim once chlorine levels return to the normal range (1–4 ppm) and the product has circulated for at least one hour.