Balanced Calcium Levels for Clearer, Better-Protected Water
Lo-Chlor Calcium Hardness Reducer is a highly concentrated liquid treatment formulated to help lower elevated calcium hardness levels in pools and spas.
By binding excess calcium in the water, it helps bring hardness levels back into the ideal range while restraining calcium scale formation on pool surfaces and equipment. This supports improved water clarity and helps protect valuable components from scale build-up.
The advanced formulation is suitable for use across all pool and spa finishes and is compatible with recognised sanitisers and water care systems.
Features & Benefits
- Reduces calcium hardness – helps return calcium levels to the ideal range of 200–400 ppm.
- Restrains scale formation – supports cleaner pool surfaces and protects equipment.
- Improves water clarity – helps restore clear, balanced water after application.
- Highly concentrated liquid – delivers effective performance with economical dosing.
- No residue – remains in solution with no need to vacuum to waste.
- Broad compatibility – suitable for all pool and spa finishes and recognised sanitisers.
How It Works
The active HEDP complex works by binding excess calcium in the water, keeping it in solution rather than allowing it to form scale on surfaces or equipment.
At the same time, the formulation also chelates trace metals such as iron and copper, helping reduce the likelihood of staining and supporting a cleaner pool finish.
Dosage & Coverage
- Coverage guide: 1 litre treats up to 50,000 litres of pool water.
Important Usage & Compatibility Information
- Compatible with recognised pool and spa sanitisers and common pool finishes.
- For existing calcium scale build-up on surfaces, use Lo-Chlor Scale Eliminator to help reduce and soften deposits.
- For salt chlorinator cells, use Lo-Chlor Salt Cell Protector Plus to help reduce and soften calcium deposits, making routine cleaning easier.
- Classified as Dangerous Goods. Follow label directions and safety instructions when handling and storing.
Why Choose Lo-Chlor Water Balancers?
Lo-Chlor Water Balancers are developed to help maintain stable, well-managed pool and spa water under a wide range of conditions.
Trusted by pool professionals, each formulation focuses on compatibility, performance, and ease of use — supporting clearer water, protected surfaces, and confident water care throughout the season.
Frequently Asked Questions
When would I need a calcium hardness reducer?
It’s used when calcium hardness levels are higher than the ideal range and may be contributing to scale formation, cloudy water, or reduced equipment efficiency.
What is the ideal calcium hardness range?
For most pools and spas, the ideal calcium hardness range is typically around 200–400 ppm. Keeping levels within this range helps support water clarity and surface protection.
Will this remove existing scale from pool surfaces?
This product helps restrain further scale formation by binding excess calcium in the water. For existing calcium scale build-up on surfaces, use Lo-Chlor Scale Eliminator to help reduce and soften deposits.
Is it suitable for all pool and spa finishes?
Yes. It can be used across all common pool and spa finishes when used according to the label directions.
Can I use this in a salt chlorinated pool?
Yes. It is suitable for use in salt chlorinated pools and helps manage calcium levels that can contribute to deposits on salt chlorinator cells.
Does it affect other water balance levels?
The product is intended to target calcium hardness. Other balance parameters such as pH and alkalinity should continue to be monitored as part of routine water care.
Will the water look different after treatment?
Water may temporarily change appearance as calcium is bound and filtered out. This typically improves with normal circulation and filtration.
How often is calcium hardness checked?
Calcium hardness is usually checked as part of regular water testing, especially in areas with hard source water or where evaporation is high.
Can it help with metal-related staining?
In addition to managing calcium, the formulation also helps keep trace metals such as iron and copper in solution, supporting stain prevention.
