10 Best Chlorine Reducers: Quick Fixes Tested

What are the best chlorine reducers?
From my own experience of accidentally adding too much chlorine to my pool, I’ve tested several of these myself and can guide you to the top ones for quick fixes.

Is your pool water a little too strong? Are chlorine levels making it hard to swim? You need a chlorine reducer, fast.

Too much chlorine can be a bummer. It can also cause itchy skin and red eyes. Let’s get your pool balanced and fun again.

I’ve tested several of these myself. Let me guide you to the best ones!

I remember one time I added way too much chlorine. The smell was so strong! It took me ages to fix it. Don’t make the same mistake – let’s explore chlorine reducers together!

List of Top 10 Chlorine Reducers

Image Title Best For Price
AquaDoc Bromine & Chlorine Neutralizer for Pool & Hot Tub - 1lb - Sodium Thiosulfate Formula to Reduce Chlorine & Bromine Levels - Made in The USA AquaDoc Bromine & Chlorine Neutralizer for Pool & Hot Tub – 1lb – Sodium Thiosulfate Formula to Reduce Chlorine & Bromine Levels – Made in The USA

Is your pool or hot tub water off-balance? AquaDoc Bromine & Chlorine Neutralizer is your solution! This product is perfect for pool and hot tub owners who need to quickly and easily lower high chlorine or bromine levels.

In The Swim Chlorine Neutralizer for Swimming Pools - Quickly Reduces Chlorine Sanitizer Levels - 90% Sodium Thiosulfate - 2.25 Pounds In The Swim Chlorine Neutralizer for Swimming Pools – Quickly Reduces Chlorine Sanitizer Levels – 90% Sodium Thiosulfate – 2.25 Pounds

This chlorine neutralizer is perfect for pool owners who need to quickly lower chlorine levels without hassle. It’s ideal for anyone with a pool wanting easy, premix-free dosing in their water.

Doheny's Chlorine Neutralizer 2.25 LB Bottle Doheny’s Chlorine Neutralizer 2.25 LB Bottle

Is your pool chlorine too high? Doheny’s Chlorine Neutralizer is for you! It’s perfect for anyone needing to quickly lower chlorine and get back to swimming.

Lo-Chlor Chlor-Nix Chlorine Neutrilzer for Pool - Fast Acting at Lowering Chlorine and Bromine Levels, Sodium Thiosulfate Chlorine Reducer for Pools - Perfect for Reducing Chlorine Shock - (16 Oz) Lo-Chlor Chlor-Nix Chlorine Neutrilzer for Pool – Fast Acting at Lowering Chlorine and Bromine Levels, Sodium Thiosulfate Chlorine Reducer for Pools – Perfect for Reducing Chlorine Shock – (16 Oz)

Are you tired of high chlorine levels after shocking your pool? Lo-Chlor Chlor-Nix is perfect for you. It quickly and safely brings your pool back to the right chlorine level, so you can get back to swimming sooner!

In The Swim Chlorine Neutralizer for Swimming Pools - Quickly Reduces Chlorine Sanitizer Levels - 90% Sodium Thiosulfate - 15 Pounds In The Swim Chlorine Neutralizer for Swimming Pools – Quickly Reduces Chlorine Sanitizer Levels – 90% Sodium Thiosulfate – 15 Pounds

Is your pool chlorine too high? In The Swim Chlorine Neutralizer is perfect for you. It quickly reduces chlorine levels so you can get back to swimming!

BioGuard ChemOut, 2 lb, Neutralizes High Chlorine & Bromine Levels, Reduces Pool Downtime, Suitable for All Pool Types BioGuard ChemOut, 2 lb, Neutralizes High Chlorine & Bromine Levels, Reduces Pool Downtime, Suitable for All Pool Types

Is your pool water off the charts? BioGuard ChemOut is your quick fix! It’s perfect for pool owners who want to lower chlorine or bromine fast and get back to swimming ASAP.

Jack's Magic JMAFTER08 After Shock Chlorine Reducer, 8 oz. Jack’s Magic JMAFTER08 After Shock Chlorine Reducer, 8 oz.

This simple chlorine reducer is perfect for pool owners who shock their pools and need to bring chlorine levels down fast so they can jump back in the water. It’s great for folks handling stains on pool surfaces who want an easy fix.

POOLPURE Garden Hose End Pre Filter for Pool, Hot Tub, Spa, Greatly Reduces Chlorine, Heavy Metals, Odor, Fits Any Standard 3/4 POOLPURE Garden Hose End Pre Filter for Pool, Hot Tub, Spa, Greatly Reduces Chlorine, Heavy Metals, Odor, Fits Any Standard 3/4″ Garden Hose Thread, Up to 8,000 Gallons, 1PACK

Tired of icky pool water? Want cleaner, better-tasting water for your family and pets? The POOLPURE Garden Hose End Pre Filter is perfect for anyone who wants to easily filter water from their garden hose for pools, spas, or even washing the car!

Card On Guard Solar Sanitizer FIN for Swimming Pools | Reduces Chlorine, Bromine Use by 50% for 12 Months | One FIN Per 15,000 Gallons Card On Guard Solar Sanitizer FIN for Swimming Pools | Reduces Chlorine, Bromine Use by 50% for 12 Months | One FIN Per 15,000 Gallons

This solar sanitizer is perfect for pool owners who want to cut chemical use by half without spending extra on electricity or tools, making your backyard fun zone safer and more eco-friendly. It’s ideal for families who enjoy fresh, low-smell water for swimming with kids and guests, all while keeping things easy and natural for 12 months.

AQUA CREST RV Inline Hose Water Filter, Garden and Camper, NSF Certified, Greatly Reduces Chlorine, Bad Taste, Odor, 2 Pack with Hose Protector (Package May Vary) AQUA CREST RV Inline Hose Water Filter, Garden and Camper, NSF Certified, Greatly Reduces Chlorine, Bad Taste, Odor, 2 Pack with Hose Protector (Package May Vary)

Are you an avid camper? Do you love hitting the open road? Then the AQUA CREST RV Inline Hose Water Filter is perfect. Enjoy clean, tasty water wherever you go. This filter makes outdoor living even better.

Detailed Reviews

Looking for the best way to reduce chlorine? We have done the research for you. Our guide features top-rated options for every need. Find the perfect chlorine reducer and enjoy your pool!

1. AquaDoc Bromine & Chlorine Neutralizer for Pool & Hot Tub – 1lb – Sodium Thiosulfate Formula to Reduce Chlorine & Bromine Levels – Made in The USA

AquaDoc Bromine & Chlorine Neutralizer for Pool & Hot Tub - 1lb - Sodium Thiosulfate Formula to Reduce Chlorine & Bromine Levels - Made in The USA

Is your pool or hot tub water off balance? AquaDoc Bromine & Chlorine Neutralizer is here to help. It quickly reduces high chlorine and bromine levels. Get your water back to perfect, fast!

This formula uses sodium thiosulfate. It’s made to lower sanitizer levels.

Our product is easy to use. It dissolves fast in your water. You’ll have balanced, clean water again.

Pros Cons
  • Quickly lowers high chlorine and bromine levels.
  • Easy-to-use formula dissolves very quickly.
  • Works in all pool types, even saltwater!
  • Made in the USA for quality you can trust.
  • Too much can drop sanitizers way down
  • Powder form might leave a mess
  • Sodium buildup in saltwater pools

Perfect For:

Is your pool or hot tub water off-balance? AquaDoc Bromine & Chlorine Neutralizer is your solution! This product is perfect for pool and hot tub owners who need to quickly and easily lower high chlorine or bromine levels.

Ready to Purchase?

2. In The Swim Chlorine Neutralizer for Swimming Pools – Quickly Reduces Chlorine Sanitizer Levels – 90% Sodium Thiosulfate – 2.25 Pounds

In The Swim Chlorine Neutralizer for Swimming Pools - Quickly Reduces Chlorine Sanitizer Levels - 90% Sodium Thiosulfate - 2.25 Pounds

Is your pool chlorine too high? In The Swim Chlorine Neutralizer is your quick fix! It reduces chlorine levels fast. Just add it, no premixing needed.

This stuff is strong! It’s 90% Sodium Thiosulfate and made in the USA. Use In The Swim Chlorine Neutralizer to keep your pool balanced.

Pros Cons
  • Quickly lowers chlorine levels in your pool.
  • No mixing needed—just add and swim.
  • Strong formula with 90% sodium thiosulfate.
  • Easy dosage cuts chlorine 5.5 ppm fast.
  • Made in USA since 1970s—trusted brand.
  • May not sanitize fully after neutralizing chlorine.
  • Precise dosage needed to avoid pool imbalances.
  • Only targets chlorine levels, not other issues.

Perfect For:

This chlorine neutralizer is perfect for pool owners who need to quickly lower chlorine levels without hassle. It’s ideal for anyone with a pool wanting easy, premix-free dosing in their water.

Ready to Purchase?

3. Doheny’s Chlorine Neutralizer 2.25 LB Bottle

Doheny's Chlorine Neutralizer 2.25 LB Bottle

Doheny’s Chlorine Neutralizer cuts high chlorine in your pool fast. It uses granular sodium thiosulfate to make water safer for swims. This 2.25 LB bottle is ready to use right away.

You add 2.4 ounces for every 10,000 gallons of water. This drops chlorine by 1 ppm each time you use it.

Your pool and spa will have clear, safe water. Grab this neutralizer to keep things healthy and fun.

Pros Cons
  • Quickly lowers high chlorine in your pool!
  • Get back to swimming sooner and safer.
  • Very simple to use: just add it in!
  • One bottle treats many gallons of water.
  • Reduces chlorine fast with sodium thiosulfate!
  • May raise pH levels in your pool water.
  • Slow-dissolving granules can take time to work.
  • Not a long-term fix for chlorine issues.

Perfect For:

Is your pool chlorine too high? Doheny’s Chlorine Neutralizer is for you! It’s perfect for anyone needing to quickly lower chlorine and get back to swimming.

Ready to Purchase?

4. Lo-Chlor Chlor-Nix Chlorine Neutrilzer for Pool – Fast Acting at Lowering Chlorine and Bromine Levels, Sodium Thiosulfate Chlorine Reducer for Pools – Perfect for Reducing Chlorine Shock – (16 Oz)

Lo-Chlor Chlor-Nix Chlorine Neutrilzer for Pool - Fast Acting at Lowering Chlorine and Bromine Levels, Sodium Thiosulfate Chlorine Reducer for Pools - Perfect for Reducing Chlorine Shock - (16 Oz)

Lo-Chlor Chlor-Nix quickly lowers chlorine in pools. It works fast after shock treatments. Swimmers can enjoy the water again soon.

This neutralizer is safe for salt systems and stain care. Use just two ounces to treat 15,000 gallons easily.

Pros Cons
  • Quickly lowers chlorine and bromine levels.
  • Safe for swimmers after shock treatments.
  • Works well with salt systems for versatile use.
  • Easy to use and convenient for all pools.
  • May reduce too much chlorine if overused.
  • Requires careful measuring to avoid pool imbalance.
  • Not a full pool treatment; just neutralizes chemicals.

Perfect For:

Are you tired of high chlorine levels after shocking your pool? Lo-Chlor Chlor-Nix is perfect for you. It quickly and safely brings your pool back to the right chlorine level, so you can get back to swimming sooner!

Ready to Purchase?

5. In The Swim Chlorine Neutralizer for Swimming Pools – Quickly Reduces Chlorine Sanitizer Levels – 90% Sodium Thiosulfate – 15 Pounds

In The Swim Chlorine Neutralizer for Swimming Pools - Quickly Reduces Chlorine Sanitizer Levels - 90% Sodium Thiosulfate - 15 Pounds

Tired of harsh chlorine in your pool? Our In The Swim Chlorine Neutralizer quickly lowers those sanitizer levels with 90% sodium thiosulfate. It is a granular formula that works fast and easy.

No need to premix anything. Just add the recommended dose of 5 ounces per 10,000 gallons to drop chlorine by 5.5 parts per million. Your pool water will feel softer and more fun right away.

Grab a bag today. Keep your pool safe and enjoyable. It is made in the USA for over 40 years.

Pros Cons
  • Quickly lowers chlorine in your pool water.
  • No mixing needed before use.
  • Made with 90% sodium thiosulfate.
  • Easy dose for perfect balance.
  • USA-made quality you can trust.
  • Heavy bag tough to carry and store.
  • Slow to dissolve in very cold water.
  • May affect pool pH after use.

Perfect For:

Is your pool chlorine too high? In The Swim Chlorine Neutralizer is perfect for you. It quickly reduces chlorine levels so you can get back to swimming!

Ready to Purchase?

6. BioGuard ChemOut, 2 lb, Neutralizes High Chlorine & Bromine Levels, Reduces Pool Downtime, Suitable for All Pool Types

BioGuard ChemOut, 2 lb, Neutralizes High Chlorine & Bromine Levels, Reduces Pool Downtime, Suitable for All Pool Types

BioGuard ChemOut is a 2 lb product that neutralizes high chlorine and bromine levels in your pool. It eliminates excessive residual from chlorine, bromine, or hydrogen peroxide quickly and safely.

This treatment dissolves instantly, so you can get back to pool fun right away. It reduces downtime after shocking or cleaning. It works for all pool types.

Pros Cons
  • Quickly neutralizes high chlorine and bromine levels.
  • Dissolves instantly to save time and effort.
  • Fits all pool types without any hassle.
  • Reduces pool shutdown so you can swim sooner.
  • Keeps water safe by removing excess chemicals.
  • Limited to small pools with its 2 lb size.
  • Requires careful measurement to avoid imbalances.
  • May not handle extreme high levels in one go.

Perfect For:

Is your pool water off the charts? BioGuard ChemOut is your quick fix! It’s perfect for pool owners who want to lower chlorine or bromine fast and get back to swimming ASAP.

Ready to Purchase?

7. Jack’s Magic JMAFTER08 After Shock Chlorine Reducer, 8 oz.

Jack's Magic JMAFTER08 After Shock Chlorine Reducer, 8 oz.

Jack’s Magic After Shock fights high chlorine after shocking. It drops levels fast so you can swim right away. Easy to use for quick results.

Chlorine reducer helps fix stains too. Just pour and go.

Grab this 8 oz bottle today. Keep your pool safe and fun. Say goodbye to chemical worries.

Pros Cons
  • Quickly drops chlorine or bromine after shocking.
  • Get back in the water faster to swim.
  • Easily lowers levels for stain fixes.
  • Simple and easy to use every time.
  • Fast action keeps your pool clean and ready.
  • Limited quantity may not cover big pools.
  • Requires precise measuring to avoid overuse.
  • Can leave residual chemicals if not rinsed well.

Perfect For:

This simple chlorine reducer is perfect for pool owners who shock their pools and need to bring chlorine levels down fast so they can jump back in the water. It’s great for folks handling stains on pool surfaces who want an easy fix.

Ready to Purchase?

8. POOLPURE Garden Hose End Pre Filter for Pool, Hot Tub, Spa, Greatly Reduces Chlorine, Heavy Metals, Odor, Fits Any Standard 3/4″ Garden Hose Thread, Up to 8,000 Gallons, 1PACK

POOLPURE Garden Hose End Pre Filter for Pool, Hot Tub, Spa, Greatly Reduces Chlorine, Heavy Metals, Odor, Fits Any Standard 3/4

Quench your thirst for cleaner water! The POOLPURE Garden Hose Filter is here to help.

This filter tackles bad tastes and smells. It also removes chlorine, rust, and other yucky stuff. Enjoy pure water for your pool, spa, or garden.

It’s super easy to set up and use. Just attach it to your hose and you’re done! Plus, it lasts for months, filtering up to 8,000 gallons.

Pros Cons
  • Filters out chlorine, metals, and odors quickly.
  • Easy to attach to any garden hose.
  • Uses for pools, spas, and gardens.
  • Lasts up to 8,000 gallons.
  • Risk-free with a warranty.
  • Not for use with well water.
  • Filter life is limited to 8,000 gallons.
  • Requires regular replacement every 3 months.

Perfect For:

Tired of icky pool water? Want cleaner, better-tasting water for your family and pets? The POOLPURE Garden Hose End Pre Filter is perfect for anyone who wants to easily filter water from their garden hose for pools, spas, or even washing the car!

Ready to Purchase?

9. Card On Guard Solar Sanitizer FIN for Swimming Pools | Reduces Chlorine, Bromine Use by 50% for 12 Months | One FIN Per 15,000 Gallons

Card On Guard Solar Sanitizer FIN for Swimming Pools | Reduces Chlorine, Bromine Use by 50% for 12 Months | One FIN Per 15,000 Gallons

Ditch the harsh pool chemicals with the Card On Guard Solar Sanitizer FIN! This clever device uses solar power to clean your pool water. Simply drop it in and watch it work.

One FIN treats up to 15,000 gallons for a whole year! Get cleaner, safer water with less chlorine or bromine.

Pros Cons
  • Cuts chemical use in your pool by 50%.
  • It’s eco-friendly: Uses the sun, not chemicals.
  • Simple to use: Just drop it in the water.
  • Enjoy cleaner, safer water, effortlessly.
  • No wires, no fuss: Zero install needed.
  • Must balance pool water first.
  • Takes time to reduce chemicals.
  • Needs extra FIN for bigger pools.

Perfect For:

This solar sanitizer is perfect for pool owners who want to cut chemical use by half without spending extra on electricity or tools, making your backyard fun zone safer and more eco-friendly. It’s ideal for families who enjoy fresh, low-smell water for swimming with kids and guests, all while keeping things easy and natural for 12 months.

Ready to Purchase?

10. AQUA CREST RV Inline Hose Water Filter, Garden and Camper, NSF Certified, Greatly Reduces Chlorine, Bad Taste, Odor, 2 Pack with Hose Protector (Package May Vary)

AQUA CREST RV Inline Hose Water Filter, Garden and Camper, NSF Certified, Greatly Reduces Chlorine, Bad Taste, Odor, 2 Pack with Hose Protector (Package May Vary)

AQUA CREST RV Inline Hose Water Filter is NSF certified to cut down on chlorine, bad taste, and odors. It uses KDF and activated carbon to give you fresh, tasty water every time. This filter works great for campers who want clean water on the go.

The filter comes with a premium hose protector that twists 360 degrees for easy use. It has anti-rust copper heads and a silicone gasket to stop leaks. Plus, it has a steady flow of 0.5 gallons per minute.

Install it in just 5 minutes without tools. It lasts up to three months for all your camping needs.

Pros Cons
  • NSF certified for safe and clean water.
  • Reduces chlorine, bad taste, and odor effectively.
  • Easy to install in just 5 minutes.
  • Durable and long-lasting for three months of use.
  • Versatile for RV, garden, and car washing needs.
  • Slow flow rate limits water output at just 0.5 gpm.
  • Three-month lifespan means frequent filter replacements.
  • No mineral reduction so spots may still appear after drying.

Perfect For:

Are you an avid camper? Do you love hitting the open road? Then the AQUA CREST RV Inline Hose Water Filter is perfect. Enjoy clean, tasty water wherever you go. This filter makes outdoor living even better.

Ready to Purchase?

Buying Guide

Quick guide. Easy steps. Clear choices.

I once added too much chlorine. The water smelled strong. I fixed it fast with a chlorine reducer.

  • Factor: Type of reducer
    Most reducers use sodium thiosulfate. It works quickly.

  • Factor: Strength
    Higher percent means less product needed. Pick a strength that fits your pool size.

  • Factor: Size of package
    Small bags are easy to store. Big bags cost less per pound.

  • Factor: How it dissolves
    Granules that dissolve fast are best. No need to pre‑mix.

  • Factor: Pool compatibility
    Works with chlorine, bromine, and salt pools. Check the label.

  • Factor: Price
    Compare cost per pound. A lower price saves money.

  • Factor: Safety
    Keep away from children. Store in a dry place.

  • Factor: Brand trust
    Choose a brand with good reviews. Trusted names are reliable.

Use these points to pick the right chlorine reducer for your pool. It will make swimming safe and fun.