Fast Reduction of Chlorine and Bromine Levels
Lo-Chlor Chlorine & Bromine Remover is a highly concentrated water treatment used to quickly reduce elevated chlorine or bromine levels in pools and spas.
It works by neutralising excess sanitiser in the water, helping restore comfortable swimming conditions without affecting other pool chemicals or water balance parameters.
The fast-acting formulation delivers results within hours and is compatible with all recognised pool and spa additives, making it ideal when sanitiser levels need to be brought back into range.

Features & Benefits
- Reduces chlorine and bromine levels – helps quickly lower excess sanitiser.
- Fast-acting performance – results typically achieved within hours.
- Highly concentrated – small amounts deliver effective reduction.
- Compatible with other pool chemicals – integrates easily into existing water care.
- Targeted action – does not reduce chloramines or combined chlorine.
How It Works
The active ingredient, sodium thiosulfate, neutralises free chlorine and bromine in the water through a chemical reduction process.
This allows sanitiser levels to be adjusted downward without impacting stabiliser levels, alkalinity, or other balance factors when used as directed.

How to Use
- Pre-dissolve the required dose in a bucket of water.
- With the pump running and filter operating, add the dissolved product to the pool or spa water.
- Test the chlorine or bromine level after 2 hours to confirm the adjustment.
Dosage & Coverage
- Quick guide: Add 50 g per 50,000 litres to lower chlorine by 1 ppm.
| Decrease By |
30,000 L |
50,000 L |
75,000 L |
100,000 L |
| 1 ppm |
30 g |
50 g |
75 g |
100 g |
| 2 ppm |
60 g |
100 g |
150 g |
200 g |
| 5 ppm |
150 g |
250 g |
375 g |
500 g |
| 10 ppm |
300 g |
500 g |
750 g |
1 kg |
Important Usage & Compatibility Information
- This product is highly concentrated. Add small amounts gradually and retest water before adding more.
- For fibreglass pools, pre-dissolve the product in a bucket of water before adding to the pool.
- Direct addition to fibreglass surfaces may cause staining if water balance is incorrect.
- Does not reduce chloramines or combined chlorine levels.
- Suitable for use with recognised pool and spa sanitisers.
Why Choose Lo-Chlor Water Chemistry Aids?
Lo-Chlor Water Chemistry Aids are developed to support precise water balance adjustments when pool conditions fall outside the ideal range.
Trusted by pool professionals, each formulation focuses on targeted correction, fast response, and compatibility with modern pool and spa systems — helping restore comfortable, well-balanced water with confidence.

Frequently Asked Questions
When would I need a chlorine or bromine remover?
It’s used when chlorine or bromine levels are higher than desired, such as after over-dosing, superchlorination, or when sanitiser levels need to be reduced more quickly.
Does this remove chloramines or combined chlorine?
No. This product reduces free chlorine and bromine levels only. It does not reduce chloramines or combined chlorine.
How quickly does it work?
Results are typically seen within a few hours after application. Sanitiser levels should be tested after treatment to confirm the adjustment.
Can it be used in spas as well as pools?
Yes. It is suitable for both pools and spas when dosed correctly according to water volume.
Is it safe to use with other pool chemicals?
Yes. It is compatible with recognised pool and spa chemicals and does not interfere with other balance parameters when used as directed.
Why is it added in small amounts?
The product is highly concentrated, so adding smaller amounts and retesting helps achieve precise control over sanitiser levels.
Can I add it directly to the pool?
It should be pre-dissolved in a bucket of water before adding to the pool or spa. This is particularly important for fibreglass pools.
Will it affect water balance?
It is intended to reduce chlorine or bromine levels only. Other balance parameters such as pH and alkalinity should continue to be monitored as part of routine water care.