ColorKiM AQUAX Total Water Hardness Test Kit – Pool, Aquarium & Drinking Water

Why testing water hardness matters

Hard water can leave a film on skin, require more soap to achieve cleanliness, and form calcium carbonate scale in heaters and pipes. That scale may raise heating costs and affect appliance performance over time.

ColorKiM AQUAX Total Water Hardness Test Kit provides a quick, two component approach to assess hardness. With a simple indicator solution and a test container, you can get reliable results in seconds using a drop‑and‑see method, without extra tools.

How the test works

Fill a small test container with a measured water sample, add one drop of the hardness indicator solution, then mix. If the sample turns green-blue, hardness is zero. If pink‑red appears, hardness is present and you continue adding drops until the color returns to green-blue.

• Easy, two‑component design suitable for pools, spas, aquariums, and drinking water checks
• Results appear in seconds with a color‑change readout that is straightforward to interpret
• Each container holds 100 drops, enabling multiple tests depending on hardness levels
• Using a titrimetric method, the kit quantifies total hardness and supports unit conversions
• Backed by ColorKiM science, with professional support and a satisfaction guarantee

• Zero hardness is green-blue; pink‑red indicates dissolved minerals
• Count the drops spent to return to green-blue to estimate hardness in dH
• Conversions: 1 dH equals 1.04 GPG and roughly 17.8 mg/L CaCO3

Who benefits

Use this kit to monitor water in residential pools, hot tubs, outdoor spas, freshwater aquariums, and even drinking water sources. It also helps those using water softeners gauge when adjustments may improve efficiency.

Quality you can trust

ColorKiM conducts in‑house testing and provides clear, science‑backed guidance. Each purchase includes reliable support, possible replacements, and a commitment to customer satisfaction.