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Thread: New pool new problems -- algae and iron!

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  1. #1
    Join Date
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    Default Re: New pool new problems

    Every night this week i have put in 5 pounds of calc hypo 78% and 2 gallons of bleach 8% and have 0 chlorine in the morning. This morning at 8 am i put in 2 more gallons of bleach waited 30 minutes and tested and had fc of 1.5. at 10:30 am chlorine is 0 again. I have put in box after box of borax this week and ph will not rise above 7.2 and is usually back down to 7.0 every morning. The water is mostly clear just a little cloudy. Do i keep doing this until something changes or do i need to do something different?
    .
    Last edited by PoolDoc; 07-12-2014 at 11:19 PM.
    20 x 40 vinyl IG rectangle, 350lb sand filter, single skimmer, diving board, Hayward 1 hp, In-line chlorinator, Polaris pressure side cleaner.

  2. #2
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    Default Re: New pool new problems

    Are you still using the K2005 kit to test the chlorine? The chlorine test in that kit is a DPD test and it bleaches out at high levels. So, it can appear that you have no chlorine when in fact you have extremely high chlorine! That is why I suggested that you get the K1515 add on kit so you can use a FAS-DPD test instead which will measure high chlorine levels. Did you get it yet? If not, then you are better off for now using an OTO kit instead of your K2005, along with this chart:> http://pool9.net/oto-chart/

    Also, pH tests are invalid when the chlorine is higher than 10ppm with a Taylor kit (and higher than 5 with other kits).
    Last edited by PoolDoc; 07-12-2014 at 11:04 PM.

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