{"product_id":"water-hardness-test-kit","title":"Water Hardness Test Kit","description":"\u003ch2\u003eBuy your Water Hardness Test Kit.\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eTest the hardness of your water. Essential when configuring a water softener to determine the level of hardness in the incoming water supply or check existing softener performance.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUp to 100 tests in one bottle!\u003cbr\u003e\u003cbr\u003eSimply add the drops to a 10ml sample in the tube, each drop counts for 20ppm of hardness. Add the drops, shaking after each is added, until the colour changes from red to blue. Multiply the number of drops by 20 to get the total hardness in ppm (parts per million) or mg\/l (milligrams per litre).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUseful for testing the performance of existing softeners.\u003c\/span\u003e\u003c\/p\u003e","brand":"GMAutoflow","offers":[{"title":"Default Title","offer_id":52264870150476,"sku":"WTK","price":10.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/1744\/1612\/files\/Yes-No-test-22780-1.jpg?v=1743514084","url":"https:\/\/gmautoflow.co.uk\/products\/water-hardness-test-kit","provider":"GMAutoflow","version":"1.0","type":"link"}