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Thread: Algae Bloom

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Austin Texas
    Posts
    22

    Question Algae Bloom

    I have been using this method for about a month with great results however I had to leave town for a few days and my chlorine dropped to 2.5 (min is 5 with my cya of 65). I raised it back up to 8 however I can see algae on one of the walls. Can a quick drop below the min FC level cause an algae bloom as it seems like this popped up fast? Do I need to SLAM? If so, should I start now or wait till the sun goes down as I am in central texas and we are getting full sun and 100 degrees in afternoon?

    Edit...my ph was also 8-8.2 when I checked this morning and I have since dropped that to 7.4. Does this have any effect on how quickly algae can bloom?



    Thanks
    13,500 gal in ground pool with pebble tec liner, intelliflow variable speed pump, cartridge filters, UV filter and solar heater.

  2. Back To Top    #2
    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,982

    Re: Algae Bloom

    Yes, a drop below minimal opens the door to the green monster. SLAM now! Don't wait. Adjust pH to 7.2 first, then crank that FC up to your FC SLAM level and go! The sooner the better. Maintain that FC level until you pass all 3 SLAM criteria (link below). Good luck.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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