Water-ID - Alkalinity-M Reagent Tablets for PoolLab 1.0 – Pack of 500 - TbsPTA500

Water-ID – Alkalinity-M Reagent Tablets for PoolLab 1.0 – Pack of 500

The Water-ID Alkalinity-M tablets are photometer-grade reagents designed to measure total alkalinity (m-alkalinity / KS4.3 acid capacity) in swimming pool and spa water using the Water-ID PoolLab 1.0 photometer. This economy pack of 500 tablets provides a high-volume supply ideal for pool professionals, service companies, and busy pool operators who test frequently. Each tablet is precisely formulated to deliver consistent, accurate readings within a measurement range of 0–200 mg/l (ppm).

Why Total Alkalinity Matters

Total alkalinity is your pool water’s pH buffer — it determines how well the water resists sudden swings in acidity or basicity caused by chlorine dosing, rainfall, or bather load. The recommended range for most pools is 80–120 ppm; below this threshold, pH becomes unstable and water turns corrosive to surfaces, pipework, and equipment. When alkalinity is too high, pH becomes very difficult to adjust and cloudy water or scale deposits may result. Monitoring alkalinity regularly is essential to keeping the rest of your water chemistry under control.

Compatibility & How to Use

These tablets are formulated exclusively for use with the Water-ID PoolLab 1.0 photometer. To test, fill the PoolLab cuvette with a pool water sample, dissolve one Alkalinity-M tablet in the sample, and run the Alkalinity measurement mode on the device. For water with a pH above 8.2, the Alkalinity-P method should be used instead. Regular testing — ideally 2–4 times per month, or after heavy rain, chemical additions, or high bather load — ensures your readings stay reliable and actionable.

Why Genuine Water-ID Tablets

Sourced directly from Water-i.d. GmbH in Germany, these are the authentic OEM reagent tablets calibrated to the PoolLab 1.0’s optical system and algorithms. Using non-genuine tablets risks inaccurate readings and unreliable dosage decisions. With a shelf life of 2 years and tablet-format advantages of long stability, exact dosing, and clean handling, this 500-tablet pack offers exceptional value for high-frequency professional testing.