These genuine Water-ID DPD No. 1 reagent tablets are the consumable refill for measuring free chlorine \u2014 the active disinfectant in your pool or spa \u2014 using the Water-ID PoolLab 1.0 photometer. Each tablet delivers a precise, pre-measured dose of N,N-diethyl-p-phenylenediamine (DPD) that reacts with chlorine in the water sample to produce a pink coloration, which the photometer reads across a range of 0.0\u20136.0 mg\/l (ppm). With 500 tablets per pack, this is the ideal economy refill for busy pool operators and service technicians.<\/p>\n
Free chlorine is the fraction of chlorine immediately available for disinfection \u2014 killing bacteria, viruses, and algae before they can cause harm. Too little and the water becomes unsafe; too much can irritate swimmers’ eyes and skin. Regular photometric testing with DPD No. 1 gives you a reliable, objective reading that colour-comparison strips simply cannot match, allowing prompt, accurate dosing adjustments every time.<\/p>\n
Fill the PoolLab 1.0 cuvette with a small amount of pool water, add one DPD No. 1 tablet, and crush it gently. Top up to the fill line, swirl to mix, and insert the cuvette into the photometer \u2014 the result is displayed within seconds. Each tablet is individually blister-packed in Germany to ensure exact dosing and a long shelf life; store in a cool, dry place away from direct sunlight to preserve reagent accuracy.<\/p>\n
These tablets are made specifically for use with the Water-ID PoolLab 1.0 photometer and are produced, blistered, and packaged in Germany to the quality standards required by that instrument. Always use genuine Water-ID reagents to ensure validated, photometer-grade results \u2014 third-party tablets may affect measurement accuracy and are not covered by Water-ID’s quality guarantee.<\/p>","protected":false},"excerpt":{"rendered":"