{"product_id":"labulit-watcon-minus-8kg","title":"LABULIT Watcon Minus (8kg)","description":"\u003ch2\u003eBuy LABULIT Watcon Minus (8kg)\u003c\/h2\u003e\n\u003cp\u003eFast-dissolving acid granules for lowering excessively high pH levels in swimming pool and hot tub water.\u003c\/p\u003e\n\u003cul style=\"list-style-type:disc;\"\u003e\n\u003cli\u003eFast-dissolving acid granules for lowering excessively high pH levels in swimming pool water.\u003c\/li\u003e\n\u003cli\u003eBased on sodium hydrogen sulfate.\u003c\/li\u003e\n\u003cli\u003eIdeal pH level = 7.2 – 7.4\u003c\/li\u003e\n\u003cli\u003eCan also be used to clean sand filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSwimming pool dosage:\u003c\/h3\u003e\n\u003cp\u003eAfter filling the pool, always first lower the alkalinity to 100 ppm using 32% hydrochloric acid.\u003c\/p\u003e\n\u003cp\u003eDuring the swimming season, if the pH level rises above 7.4: \u003c\/p\u003e\n\u003cul style=\"list-style-type:disc;\"\u003e\n\u003cli\u003eper 0.1 pH unit = 75 g WATCON MINUS per 10'000 litres \u003c\/li\u003e\n\u003cli\u003eFirst dissolve the calculated amount of WATCON MINUS in a bucket of water! Then slowly pour it into the water along the edge of the pool while the circulation system is running. Alternatively, simply scatter the granules over the surface of the water while the circulation system is running.\u003c\/li\u003e\n\u003cli\u003eMeasure the pH level again after 12 hours and, if it is still too high, repeat the dosage as described above\u003c\/li\u003e\n\u003cli\u003eHard water requires more WATCON MINUS, while soft water requires less\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCalculation example based on an alkalinity of 100 ppm:\u003c\/p\u003e\n\u003cul style=\"list-style-type:disc;\"\u003e\n\u003cli\u003eMeasured pH level = 8.0, target level = 7.2 \u003c\/li\u003e\n\u003cli\u003eCorrection by 0.8 pH units = 8 x 75 g = 600 g\/10‘000 litres\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHot tub dosage:\u003c\/h3\u003e\n\u003cp\u003eIf the pH level is above 7.4, lower it to the ideal level of 7.2 using WATCON MINUS:\u003c\/p\u003e\n\u003cul style=\"list-style-type:disc;\"\u003e\n\u003cli\u003eApprox. 20 g of WATCON MINUS for 1‘000 litres, scatter directly into the water.\u003c\/li\u003e\n\u003cli\u003eIf necessary, add more until a pH level of 7.2 is reached.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWATCON MINUS for backwashing (= deep cleaning) the sand filter:\u003c\/h3\u003e\n\u003cul style=\"list-style-type:disc;\"\u003e\n\u003cli\u003eTo clean the sand filter of heavily adhering dirt (and thereby reduce chlorine consumption), use WATCON MINUS approximately 3–4 times per swimming season.\u003c\/li\u003e\n\u003cli\u003eWhile backwashing the filter, slowly add approx. 500 g of WATCON MINUS to the skimmer (over approx. 2 minutes).\u003c\/li\u003e\n\u003cli\u003eThe acid granules dissolve the firmly adhering dirt, which is flushed out during backwashing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul style=\"list-style-type:disc;\"\u003e\n\u003cli\u003eWATCON MINUS tends to harden (hygroscopic). This does NOT result in any loss of quality!\u003c\/li\u003e\n\u003cli\u003eThe crystal blocks can easily be broken up or crushed mechanically.\u003c\/li\u003e\n\u003cli\u003eThe pH level of the swimming pool water should be checked 1–2 times a week and corrected if necessary.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LABULIT","offers":[{"title":"Default Title","offer_id":64752937238877,"sku":"Kanela-38828","price":49.4,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1058\/1314\/7997\/files\/55393.jpg?v=1779313709","url":"https:\/\/kanela.ch\/en\/products\/labulit-watcon-minus-8kg","provider":"Kanela AG","version":"1.0","type":"link"}