PoolLab Reagent – Calcium Hardness

The reagent set for measuring calcium hardness is compatible with the PoolLab digital photometer and enables a fast and accurate determination of the calcium content (Ca²⁺) in pool water. Correct calcium hardness in the range of 200–400 mg/l as CaCO₃ is crucial for protecting the pool liner, concrete surface and metal components from corrosion or limescale build-up. The liquid reagent is dosed according to the enclosed instructions directly into the photometer cuvette, and the result is available immediately on the device display. Regular measurement of water hardness allows precise dosing of hardness-regulating products and reduces chemical consumption. The package is intended for multiple use and covers the entire bathing season.