Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit
Total Water Hardness Test for Pool, Aquarium, and Drinking Water, and Improving Water Softener Efficiency, Hard Water Test Kit
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About This
- Easy, simple to use and reliable water hardness test: AQUAX total water hardness test kit uses just two components: a water hardness indicator solution and a water test container (no microspoon or additional container), making the kit an accurate and easy-to-use test to determine water quality in pools, spas, aquarium, and industries where water hardness is important.
- Accurate results in seconds: Unlike paper test trips that can be difficult to read and match against color charts, AQUAX hard water test kit uses the easy drop-and-see testing method where the color changes in a single drop to reflect the water hardness, thus providing reliable results within few seconds. Easy-to-read instructions are included with each package.
- One hard water test kit, multiple water hardness tests: Each container contains 100 drops, enough to perform multiple tests, depending on the level of water hardness.
- Accurate and reliable test method: AQUAX uses the Titrimetric method to determine total water hardness. The available Calcium Bicarbonate in the water could be calculated as well (read the instruction at the back side of box). To convert the hardness from German unit to Grains per Gallon use the following formula: 1 dH (German Hardness) = 1,04 GPG (Grains per Gallon)
- Water quality specialists: Colorkim specializes in water quality testing and treatment products. Each product is we sell is tested by a team of scientists in our own research laboratory to ensure it delivers accurate results. Every purchase is backed by knowledgeable and professional advice, free replacement of damaged products. Your satisfaction is guaranteed.

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
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See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
FAQ
Water Filtration & Home Water Guide