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Dichlor/bleach Method For A Pool?


Razorhog

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You normally would add pure CYA directly in a sock (or T-shirt in a skimmer, which is what I do) since you need to add a lot and it's generally cheaper this way. You could add Dichlor, but it will take a while to build up the CYA since you only generally add around 2 ppm FC per day and with an outdoor pool you may need 50 ppm CYA to protect chlorine from breakdown from sunlight. In very sunny areas, you may need even more and most SWGs are undersized so need 70-80 ppm CYA. Just make sure your FC is high enough relative to the CYA level to prevent algae growth.

You need to add a lot more volume of chlorine in a pool so you might find 12.5% chlorinating liquid more convenient though you can compare prices against bleach and decide which is more economical.

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You normally would add pure CYA directly in a sock (or T-shirt in a skimmer, which is what I do) since you need to add a lot and it's generally cheaper this way. You could add Dichlor, but it will take a while to build up the CYA since you only generally add around 2 ppm FC per day and with an outdoor pool you may need 50 ppm CYA to protect chlorine from breakdown from sunlight. In very sunny areas, you may need even more and most SWGs are undersized so need 70-80 ppm CYA. Just make sure your FC is high enough relative to the CYA level to prevent algae growth.

You need to add a lot more volume of chlorine in a pool so you might find 12.5% chlorinating liquid more convenient though you can compare prices against bleach and decide which is more economical.

Fantastic reply, as usual chem geek. Thanks!

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