{"product_id":"u-s-pool-supply-test-kit-refills-pool-spa-ph-chlorine-bromine-testing","title":"U.S. Pool Supply Test Kit Refills – Pool \u0026 Spa pH, Chlorine \u0026 Bromine Testing","description":"\u003ch2\u003eKeep your pool water balanced with reliable refill solutions\u003c\/h2\u003e\n\u003cp\u003eDesigned for home pool and spa care, the U.S. Pool Supply test kit refills provide convenient, ready-to-use chemistry for checking essential water balances. These refill solutions work with standard test kits to help you monitor chlorine, bromine, and pH levels, supporting a safer, more enjoyable swimming environment.\u003c\/p\u003e\n\u003cp\u003eThe refill set centers on two key solutions crafted for precise color-based readings. One is a dropper bottle of OTO (Orthotolidine) chlorine test solution, and the other is a dropper bottle of Phenol Red pH test solution. Each bottle holds 1\/2 ounce and is designed for straightforward dosing, so you can conduct routine checks without fuss. When used with the test kit’s tubes and color charts, these solutions translate pool chemistry into visual cues you can act on.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo standard refill solutions for pool and spa chemical testing\u003c\/li\u003e\n  \u003cli\u003e1\/2 ounce dropper bottle of OTO chlorine test solution\u003c\/li\u003e\n  \u003cli\u003e1\/2 ounce dropper bottle of Phenol Red pH test solution\u003c\/li\u003e\n  \u003cli\u003eCompatibility with common test kits used for chlorine, bromine, and pH measurement\u003c\/li\u003e\n  \u003cli\u003eTypical procedure uses 5 drops of each solution per test with pool water\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to use these refill solutions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFill a test tube block with a pool water sample.\u003c\/li\u003e\n  \u003cli\u003eAdd 5 drops of the chlorine test solution (OTO) to the sample.\u003c\/li\u003e\n  \u003cli\u003eAdd 5 drops of the pH test solution (Phenol Red) to the same sample.\u003c\/li\u003e\n  \u003cli\u003eCap, mix gently, and compare the resulting colors to the kit’s reference chart.\u003c\/li\u003e\n  \u003cli\u003eRecord the readings and adjust chlorination and pH as needed for your routine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy these refills are a practical choice\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCompact 1\/2 oz bottles offer easy, controlled dosing for consistent results\u003c\/li\u003e\n  \u003cli\u003eDesigned to fit standard pool and spa test kits, simplifying your setup\u003c\/li\u003e\n  \u003cli\u003eClear color outcomes help you track changes over time without guesswork\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTips for daily pool care\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eKeep a regular testing cadence, especially after heavy use or weather changes\u003c\/li\u003e\n  \u003cli\u003eStore bottles in a cool, out-of-direct-light location to preserve color integrity\u003c\/li\u003e\n  \u003cli\u003eDocument readings to spot trends and maintain balanced water chemistry\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese refill solutions offer a practical way to support routine pool and spa testing. They are intended to assist you in monitoring chemistry with commonly used test kits, helping you maintain clear water, comfortable balance, and a safer swimming experience.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the U.S. Pool Supply test kit refill solutions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes two standard refill solutions: OTO chlorine test and Phenol Red pH test, plus 1\/2 oz dropper bottles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I use these solutions for accurate pool water testing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Add 5 drops of each solution to a test tube with pool water, then compare to color charts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"U.S. Pool Supply","offers":[{"title":"Default Title","offer_id":48157801119988,"sku":"B072KHTCVB","price":12.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/us-pool-supply-oto-chlorine-test-solution-bottle.jpg?v=1778298295","url":"https:\/\/www.cerapatiogarden.com\/products\/u-s-pool-supply-test-kit-refills-pool-spa-ph-chlorine-bromine-testing","provider":"Cera Garden","version":"1.0","type":"link"}