We are a leading swimming pool and spa chemicals supplier in China, providing a series of chemicals with good performance for balancing the pool water quality. As an important indicator of water quality, calcium hardness affects the clarity of water, the service life of pool equipment and the comfort of swimmers.
What Is Calcium Hardness
Calcium Hardness (CH), in short, refers to the content of calcium ions in the water, which is an important standard to measure the hardness of water quality. In daily life, calcium has certain benefits for our bodies, but in the swimming pool, its calcium hardness level needs to be maintained in a suitable range to ensure the safety and stability of the pool water quality.
What Is the Ideal Calcium Hardness Level
- If you have a plastic padded pool, the ideal range for CH is 180-250 mg/L.
- If your pool is a concrete pool, the ideal range of CH is 200-275 mg/L.
Note: It is recommended to test the pool water hardness once a month.
What If the Water Is Too Hard
When the pool contains high levels of minerals of calcium, the pool water will become hard. Meanwhile, as the water evaporates and more people swim, these substances will gradually deposit on the pool walls and bottom, and then form scale. Scaling will not only cause the pool water to become cloudy, affecting the swimming experience of swimmers, but also affect the heat transfer efficiency of the heater. In addition, pool scaling can also clog pool equipment such as filters and pipes, and reduce their operating efficiency and service life, resulting in equipment damage, which increases the cost of equipment maintenance and replacement.
How to Balance Hard Water
Change Partial Water
You can reduce the overall calcium hardness by draining a portion of the water with high calcium hardness, then adding fresh water.
Use the Chelating Agent
Calcium ions are combined with a chelating agent so that they cannot form scale.
Use Pool Flocculants
Flocculants can gather the scale that has formed and floats in the water into clumps that will settle to the bottom of the pool. After that, you need to remove them with a vacuum cleaner manually.
For the application of flocculants in a pool, please refer to: A Beginner's Guide to Pool Flocculants
Use a Scale Remover
For pool scaling, you can use a scale remover. Please strictly follow the instructions when using, so as not to damage the pool equipment and affect the water quality. It should be noted that these products are usually designed for a specific site of scale, please read the instructions carefully.
What If the Water Is Too Soft
When the calcium hardness level in the pool is low, the pool water will become soft. Soft water is corrosive and can erode concrete pool walls, pool pipes, pumps and other equipment. If you fail to adjust the calcium hardness to the right level, which amounts to expensive repairs. Moreover, the low calcium hardness level in the pool can easily cause foaming. Our antifoam can greatly solve this problem.
About pool foam issue, please refer to: How to Get Rid of Pool Foam?
How to Balance Soft Water
Adding calcium chloride is a common method to increase CH in the water. When adding, please pay attention to the suitable dosage and uniform distribution to avoid excessive local concentration. The appropriate dosage of calcium chloride can improve the hardness of water quality, while not causing other negative effects.
Prevention Is Always Easier Than Cure
To avoid too high or too low calcium hardness levels in the pool, the most important thing is to do a good job of pool maintenance and maintain the chemical balance of the water.
Regularly Test the Water
Regularly test the calcium hardness, pH level, total alkalinity and other parameters of the pool water so as to find problems and solve them in time.
Balance the Water
Adjust the water quality according to the test results to ensure that all parameters are in the appropriate range, including adjusting pH level, total alkalinity and timely adding disinfectants.
Keep Your Pool Clean
Regularly brush the pool wall and bottom, and clean filtration equipment to prevent the accumulation of dirt and calcium deposits on the water quality.
Reasonably Use Chemicals
When adding chemicals, strictly follow the instructions to avoid excessive use causing water quality imbalance.
Conclusion
To sum up, balancing the calcium hardness level in the pool is important for pool maintenance. Only by doing daily maintenance and taking timely measures can swimmers be provided with a healthy, comfortable and safe swimming environment. As a supplier of swimming pool chemicals, we can offer a wide range of products, including disinfectants, pH regulators, algaecides, clarifiers, flocculants, defoamers and so on. For any inquiries about pool chemicals, please contact us.