{"product_id":"general-hydroponics-ph-test-indicator","title":"General Hydroponics pH Test Indicator Solution","description":"\u003cp\u003eMonitor nutrient solution pH quickly and conveniently with \u003cstrong\u003eGeneral Hydroponics pH Test Indicator Solution\u003c\/strong\u003e. This concentrated liquid reagent provides an easy-to-read visual pH test across a broad \u003cstrong\u003e4.0 to 8.5 range\u003c\/strong\u003e, making it useful for hydroponic reservoirs, coco coir, soilless growing media, and soil feeding solutions.\u003c\/p\u003e\n\n\u003cp\u003eThe larger refill format is ideal for frequent testing or for growers who already have a reusable test vial. It requires no batteries, calibration solutions, probes, or electronic equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e This product includes pH Test Indicator solution only. A test vial, pH Up, and pH Down are not included.\u003c\/p\u003e\n\n\u003ch2\u003eGeneral Hydroponics pH Test Indicator Benefits\u003c\/h2\u003e\n\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eWide Testing Range:\u003c\/strong\u003e Measures nutrient solutions from pH 4.0 to 8.5.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSimple Visual Results:\u003c\/strong\u003e The sample changes color according to its acidity or alkalinity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEconomical Refill Size:\u003c\/strong\u003e A practical choice for growers who test reservoirs and feeding solutions regularly.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNo Calibration Required:\u003c\/strong\u003e Provides convenient testing without maintaining a digital pH meter.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for hydroponics, coco coir, soil, and soilless gardens.\u003c\/li\u003e \u003c\/ul\u003e\n\n\u003ch2\u003eHow to Test Your Nutrient Solution\u003c\/h2\u003e\n\n\u003col\u003e \u003cli\u003eMix all base nutrients and additives into fresh water before testing.\u003c\/li\u003e \u003cli\u003eRinse a clean test vial and add approximately 5 mL of the finished nutrient solution.\u003c\/li\u003e \u003cli\u003eAdd three drops of pH Test Indicator to the sample.\u003c\/li\u003e \u003cli\u003eGently shake or swirl the vial to mix.\u003c\/li\u003e \u003cli\u003eCompare the resulting color with the General Hydroponics pH color chart under clear, full-spectrum light. Viewing the sample against a white background can make the color easier to interpret.\u003c\/li\u003e \u003cli\u003eIf necessary, adjust the main nutrient solution gradually with pH Up or pH Down, mix thoroughly, and test again.\u003c\/li\u003e \u003c\/ol\u003e\n\n\u003ch2\u003eImportant Testing Tips\u003c\/h2\u003e\n\n\u003cul\u003e \u003cli\u003eNever add the indicator directly to your reservoir or feeding solution.\u003c\/li\u003e \u003cli\u003eDiscard the tested sample rather than returning it to the reservoir.\u003c\/li\u003e \u003cli\u003eRinse the test vial thoroughly before and after every use.\u003c\/li\u003e \u003cli\u003eUse the official color chart instead of relying solely on generalized color descriptions.\u003c\/li\u003e \u003cli\u003eKeep the bottle tightly sealed and store it in a cool, dry place away from direct sunlight and extreme temperatures.\u003c\/li\u003e \u003cli\u003eKeep out of reach of children.\u003c\/li\u003e \u003c\/ul\u003e","brand":"General Hydroponics","offers":[{"title":"8 oz","offer_id":51433837035684,"sku":"722140","price":11.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1298\/4199\/products\/General-Hydroponics_-pH-Test-Indicator_-8-oz-General-Hydroponics-1673929946_4ebebec8-2de7-40f1-936a-83d1bc8ed656.jpg?v=1674064852","url":"https:\/\/www.gardensupplyguys.com\/products\/general-hydroponics-ph-test-indicator","provider":"GARDEN SUPPLY GUYS","version":"1.0","type":"link"}