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Thread: Algaecide during Stain Removal

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    Algaecide during Stain Removal

    Hello all,
    This is my 3rd season as a pool owner, and all has been well since finding this site and learning the basics. So thanks for that! This year I want to address my iron stains that I have just lived with in the past. After opening 2 weeks ago, I got the pool cleaned up real good and began the SLAM. After 10 days of holding chlorine between 16-18 (CYA is 40), the water was clear and I passed the overnight test. Maintained chlorine at 16-18 for 2 more days to be sure, and passed overnight test those 2 days as well. Knowing I had no algae issues, I began letting the chlorine level drop. I am planning on adjusting PH/ALK as needed, then adding my Algaecide (ProTeam Polyquat 60) once my chlorine hits 4. I've never added an Algaecide before, and need to know how much to add for proper prevention while chlorine is gone during AA. The bottle of Polyquat gives recommended doses for "freshly filled pools" and a "weekly maintenance" dose every 5-7 days. I was planning on adding the "freshly filled pools" dose, but want to make sure that it is not too much for what I'm doing. I'm thinking my chlorine will be zero for maybe 3-5 days while the AA and bleach fight each other off after the treatment. Any recommendations for amount of Algaecide, and dosage frequency while zero chlorine? Thanks in advance for any help.

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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Algaecide during Stain Removal

    Since you've never added poly60 before, you will use the fresh fill dosage. Since there's no algae in the pool now, and you'll only be at zero FC for a couple days with a fresh dose of algaecide, I think one dose will be enough.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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