This actually isn't complicated. This MSDS indicates that the Oreq ClearView® shimmer n shock product is 100% Sodium dichloro-s-triazinetrione which is what we normally call Dichlor. The following are the types of chlorine and their side effects in terms of what else they add to the water (for salt, this includes the resulting salt when the chlorine is used/consumed).
Type of Chlorine . FC CYA CH Salt . Typical Dosage per 10,000 gallons per FC
Trichlor ................ 10 . 6 ... 0 ... 8 .. 14.6 oz. (109 grams)
Dichlor ................. 10 . 9 ... 0 ... 8 .. 24.1 oz. (181 grams)
.................................................. ... for Dichlor Dihydrate
Calcium ............... 10 . 0 .. 7-8 10-12 20.7 oz. (155 grams)
Hypochlorite ................................... for Cal-Hypo 65%
Sodium ................ 10 . 0 ... 0 .. 17 . 102 fluid oz. (800 ml)
Hypochlorite ................................... for 12.5% (trade) chlorinating liquid
Lithium ................ 10 . 0 ... 0 .. 17 . 38.3 oz. (286 grams)
Hypochlorite
Chlorine Gas ......... 10 . 0 ... 0 ... 8 .. 13.4 oz. (100 grams)
Saltwater Chlorine . 10 . 0 ... 0 ... 0 .. N/A
Generator
Trichlor and Dichlor are known as "stabilized chlorine" because they have Cyanuric Acid (CYA) in them. Trichlor is usually in a slowly dissolving puck but is also sold as granular and it is quite acidic (low pH). Dichlor is granular. Cal-Hypo is usually in powdered form and increases Calcium Hardness (CH). Sodium hypochlorite is what is in chlorinating liquid and in bleach and is what we normally recommend as the common source of chlorine if you aren't intending to raise CYA or CH. Lithium hypochlorite is powdered but is very expensive. Chlorine gas is not used in residential pools except by a few pool services. A saltwater chlorine generator is fairly common in residential pools and generates chlorine from the salt in the pool.
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