{"product_id":"complete-chlorine-pool-spa-water-test-kit-fas-dpd","title":"Taylor Complete Chlorine Pool \u0026 Spa Water Test Kit FAS-DPD","description":"\u003cp\u003eThe Taylor K-2006 is the complete FAS-DPD test kit for chlorine pools and spas, listed here as K-2006-6. It covers total alkalinity, free chlorine, combined chlorine, cyanuric acid, calcium hardness and pH in one case.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy FAS-DPD\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMost inexpensive kits ask you to match a color against a printed block, which gets you a rough band and no more. FAS-DPD works by titration: you add a reagent drop at a time and count until the sample changes color. The count is the reading. That gives an actual number, resolves high chlorine levels that color matching cannot, and removes the guesswork of judging shades under poolside light.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFree and combined chlorine\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe kit reads both separately, and that distinction drives most chlorine decisions. Free chlorine is the sanitizer still available to work. Combined chlorine is what has already reacted with contaminants and is spent. A pool with plenty of total chlorine but a high combined reading is a pool that needs shocking, and no strip will tell you that.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat you get\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReagents, comparators and vials arrive in the case, ready to use. Reagents have a shelf life, so keep them cool and out of the sun and replace them individually as they age rather than buying a whole new kit.\u003c\/p\u003e","brand":"Taylor Technologies","offers":[{"title":"Default Title","offer_id":48625785733332,"sku":"TAY-45-915","price":103.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_05b8fc66-f7ca-4662-b5bc-1b08bcd8002f.jpg?v=1788692408","url":"https:\/\/www.activepoolsupply.com\/products\/complete-chlorine-pool-spa-water-test-kit-fas-dpd","provider":"Active Pool Supply","version":"1.0","type":"link"}