What does it do?
It reduces calcium hardness in pool water to prevent scale formation and corrosion, protecting surfaces and equipment.
How does it work?
The active ingredient (Hydroxyethylidene Diphosphonic Acid at 200g/L) chelates calcium ions, lowering hardness levels effectively.
How is it applied?
Test your water to check the calcium hardness (ideal range: 200–400 ppm), then slowly pour the required dosage around the pool perimeter with the pump running, allowing 24 hours for full circulation.
What is the dosage?
Approximately 1L treats 30,000 L of pool water; adjust the dosage based on your testing results.
Is it safe for all pools?
Yes, it’s compatible with all pool sanitizers and safe for use in various pool types and spas.
Dosing Multiple Chemicals or Need to Swim Soon?
We have a detailed Pool Chemical Wait Times and Chemical Interactions Guide that you can check here.
Water TechniX Calcium Down – Pool Hardness Decreaser
Water TechniX Calcium Down is a high-quality chemical solution designed to effectively reduce calcium hardness levels in swimming pool and spa water. Maintaining the right calcium hardness is essential for preventing scaling and corrosion, ensuring the longevity of your pool's surfaces and equipment.
Key Benefits:
-
Essential for Water Balance: Helps to maintain the correct calcium levels in your pool water, keeping it safe for use.
-
Protects Pool Surfaces and Equipment: Prevents scaling and corrosion that can damage your pool’s finish and equipment.
-
Reduces Scale Formation: Lowers calcium hardness to the ideal range of 200-400 ppm, reducing the likelihood of calcium buildup.
-
Chelates Trace Metals: Assists in controlling unwanted staining of pool surfaces by keeping metals like iron and copper in solution.
-
Compatible with All Pool Sanitizers: Works effectively with all pool sanitizing systems.
-
Made in Australia: High-quality product designed and manufactured locally, supporting Australian businesses.
How to Apply:
-
Test the Water: Use a reliable test kit to measure your pool's current calcium hardness level. The ideal range is between 200-400 parts per million (ppm).
-
Check the Dosage Chart: Refer to the dosage chart for accurate dosing based on your pool size and current calcium hardness level.
-
Add the Chemical: Slowly pour the required amount of Water TechniX Calcium Down around the perimeter of the pool.
-
Run the Pump: Keep the pool pump running for at least 24 hours to ensure even distribution of the product.
-
Recheck the Water: After 24 hours, retest the calcium hardness level. If needed, repeat the process to reach the desired calcium hardness range.
Water TechniX Calcium Down Details:
-
Active Ingredient: 200g/L Hydroxyethylidene Diphosphonic Acid
-
Packaging: 1L resealable bottle
-
Dosage: 1L treats 30,000 litres of pool water
- Made in Australia
Why Choose Water TechniX:
-
Cost-Effective: Save up to 50% compared to traditional pool chemicals.
-
Top Quality: Designed to eliminate up to 4X more bacteria and improve water balance with low-residual ingredients.
-
Support Local: Proudly made and tested in Australia, supporting Aussie businesses.
-
Proven Performance: Rigorous testing ensures effectiveness across all pool types.
-
Time-Saving: Maintain your pool with ease using single-dose bottles that simplify the process.
Always wear safety protection and follow label instructions when handling pool chemicals.
Download our printable 7-in-1 test strip dosage guide here to make the best use of your pool chemicals.
Estimate Transit Days
Estimate Transit Days
In stock at Mr Pool Man HQ i
In stock at Mr Pool Man HQ 
Lifetime Customer Support i
Lifetime Customer Support 
60 Day Easy Returns* i
60 Day Easy Returns* 
