{"product_id":"free-chlorine-test-strips","title":"Solen Free Chlorine Test Strips","description":"\u003cp\u003e\u003cstrong\u003eThe only way to check whether we are telling you the truth.\u003c\/strong\u003e Four of these ship free in every Solen box. This is the refill pack.\u003c\/p\u003e\n\u003cp\u003eHold a strip under the running water for one second. Read it against the chart at fifteen seconds. Do it before you fit the head, and again after. Then do it every six weeks — when the number starts climbing back, your cartridge is finished.\u003c\/p\u003e\n\u003ch3\u003eRead this before you buy them\u003c\/h3\u003e\n\u003cp\u003eThese measure \u003cstrong\u003efree chlorine\u003c\/strong\u003e, which is what the cartridge is designed to reduce. They do \u003cstrong\u003enot\u003c\/strong\u003e measure hardness, and our head does not change hardness. If your supply is treated with chloramine rather than free chlorine — many UK and US suppliers use it — a free chlorine strip may move very little even when the cartridge is working properly. Your water company publishes which one it uses in its annual quality report.\u003c\/p\u003e\n\u003cp\u003e10 strips per pack. Foil sealed. 24-month shelf life.\u003c\/p\u003e","brand":"Solen","offers":[{"title":"10 strips","offer_id":54578643173719,"sku":"SLN-STRIP-10","price":6.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/solenbase.com\/products\/free-chlorine-test-strips","provider":"Solen Base ","version":"1.0","type":"link"}