Raising Chlorine Making Water Green

[Cookieman]

Since I began to notice some algae collecting in certain spots late in the week, I tend to agree with you and Waterbear on the algae bloom. If I can believe pool stores, I've never had an issue with iron before. I am not on well water. By my math I caluclate for 26000 gal, I need to add 1 gal of chlorine to increase 1ppm. Does that sound right? Is there a limit to how much I can add at one time? Thanks for the help

[BigDave]

According to ThePoolCalculator, adding 1 gallon of 6% bleach should increase your FC by 2.4. But ... the bleach is being consumed in the algae fight. The calculated amount will be your minimum starting, you'll need more. Dose, Mix, Test, repeat 'til you get to where you need to be. As for a limit, don't go too far over your shock level but some overshoot will be ok, it will be consumed.

[aylad]

Also, the more often you can test and re-dose to get back up to your shock level, the faster the pool will clear.

Janet

[Watermom]

One other question ----- have you used any algaecide? The foaming that you reported is what made me wonder as some algaecides will cause foaming.

[Cookieman]

No, I haven't used any algeacide yet. I'll get the Chlorine to shock level and let you know how it goes. Thanks

[Cookieman]

After about 25 bottles of bleach, adding enough at night to get chlorine levels to around 20ppm each morning pool cleared in 3-4 days. I was testing twice a day and always added chlorine after sunset. Each night I tested before adding more, and chorine would usually drop back to mid to low teens. Clear as a bell now and trying now to keep it at "best guess" targets for my cyanuric level. Is it time to tackle light brown stain on steps? I have been reading about ascorbic acid and "jacks pink stuff". Thinking I need to stabilize chlorine first....any thoughts. Thanks for the help.