Razorhog Posted February 20, 2013 Report Share Posted February 20, 2013 I currently use the dichlor/bleach method in my hot tub, and it works great. I am considering buying a new house that has a pool. The pool is fiberglass with no liner, but I don't know any other specifics about it. Can I use the dichlor/bleach method using clorox bleach like I do in the hot tub? Quote Link to comment Share on other sites More sharing options...
Razorhog Posted February 20, 2013 Author Report Share Posted February 20, 2013 After reading some at http://www.troublefreepool.com it looks like the method can be used. I'll check to see if the pool has a SWG, which I bet it does. Quote Link to comment Share on other sites More sharing options...
chem geek Posted February 22, 2013 Report Share Posted February 22, 2013 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. Quote Link to comment Share on other sites More sharing options...
Razorhog Posted February 22, 2013 Author Report Share Posted February 22, 2013 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! Quote Link to comment Share on other sites More sharing options...
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