OnGuard Chlorine Neutralizer 25 Lb
Best solution for pool owners needing to quickly lower sanitizer levels.
Quickly manage excess sanitizer in your pool or spa with OnGuard Chlorine Neutralizer. This 25 Lb container features 100% Sodium Sulfite to effectively lower high chlorine or bromine levels when they exceed recommended standards. For precise application, use 2.4 ounces per 10,000 gallons to reduce the chlorine level by 1 ppm. Apply this powder directly to the pool water, distributing it evenly across the surface, and avoid adding it through the skimmer for optimal results. It is suitable for both swimming pools and spas.
$109.00
Owner Satisfaction
4.7
/ 5
Category Rank
3
/ 1319
#3 in Pool Cleaners & Chemicals
Price vs Category Average
+60%
Above average
Net Contents
25
/ Lb
Who it's for
- Pool owners needing immediate water safety for swimmers
- Commercial operators seeking long-term bulk chemical savings
- Pool owners protecting expensive equipment and vinyl liners
Who should skip it
- Pool owners trying to minimize total dissolved solids
- Users with limited storage space or physical lifting constraints
- Beginners worried about balancing complex chemical residuals
Performance breakdown
Chemical Potency
Pure sodium sulfite formula delivers rapid, reliable chlorine level reduction.
Dosage Precision
Clear measurement guidelines make balancing pool chemistry straightforward and predictable.
Application Ease
Powder form dissolves quickly when distributed evenly across the water surface.
Versatility
Effective for both residential swimming pools and smaller spa environments.
Bulk Value
The 25-pound container provides ample supply for frequent seasonal maintenance.
Safety Compliance
Requires careful manual distribution to avoid potential skimmer system clogs.
Key Specs
Net Contents
25 Lb
Active Ingredient
100% Sodium Sulfite
Dosage Rate
2.4 oz per 10,000 gallons to reduce 1 ppm
Product Form
Powder
Product Type
Chlorine Neutralizer
Compatibility
In Ground Pool, Above Ground Pool
Application Method
Add directly to the pool; not through a skimmer. Should be evenly distributed around the entire pool.
Chemical Purpose
pH Balancer
Features
- Rapidly reduces excess chlorine and bromine
- 100% Sodium Sulfite active ingredient
- Easy dosage calculation for precise control
- Suitable for pools and spas
- Powder form for direct water application
- Designed for quick level correction
What customers say
Customers overwhelmingly value the OnGuard Chlorine Neutralizer for its rapid and reliable efficacy in quickly reducing high chlorine levels. This product is essential for pool maintenance professionals and large residential owners alike. The 25 lb bulk packaging is consistently highlighted as a major value proposition, offering significant cost savings that appeal to users focused on operational efficiency. Reviewers confirm the product's purity and consistency, noting it dissolves effectively and performs exactly as expected, reinforcing the brand's reputation for quality pool chemicals. While dosing precision is noted as important for new users, the overall sentiment reflects high trust in performance and excellent perceived value for this essential bulk chemical.
Know before you buy
OnGuard Chlorine Neutralizer is formulated with 100% Sodium Sulfite, which is highly effective at rapidly reducing high levels of chlorine or bromine in your water.
To lower your chlorine level by 1 ppm, use 2.4 ounces of the powder for every 10,000 gallons of water. Always test your water levels first to determine exactly how much reduction is needed.
No, you should not add this product through the skimmer. For the best results, distribute the powder evenly across the surface of the pool water while the pump is running.
Yes, this neutralizer is suitable for both swimming pools and spas. It works effectively in both in-ground and above-ground pool systems.
This product is designed for rapid level correction. Because it is a concentrated powder, it begins working immediately upon distribution to bring your sanitizer levels back into the recommended range.
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