Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: Is there such thing as a "little" algae? :)

  1. Back To Top    #1

    Is there such thing as a "little" algae? :)

    Successfully kept my pool algae-free for most of the summer (phew) but I have to say, the balance between keeping the chlorine at just a couple of points vs. letting it go to zero accidentally is a razor's edge. I thought I had fixed my salt cell, and now it's giving me more problems (argh). Turned my back for a day or two, and here we go...

    Checked the pool today and it looks like it's got just the tiniest bit of algae in it. It's orange-ish algae, which is the same kind I always get when I turn my back. I measured the FC and it was 0, but it couldn't have been at 0 for more than a day or two at the most. I brushed it immediately and poured a gallon of liquid chlorine in (this normally raises FC by 7 in my pool).

    So, another beginner question. Is this just a "little" algae outbreak and am I safe if I keep my chlorine slightly elevated and brush regularly? Or do I need to follow the whole SLAM recipe? I hate to do that at the peak of summer when my kids want to go in and swim every day.

    PH = 7.8 (about to lower it with some muriatic right now)
    TA = 90
    CYA = 50
    Los Angeles (San Fernando Valley)
    15k gallon in-ground (IG) pool (I believe it's plaster)
    DE filter (Heyward), using cellulose instead of DE
    Jandy APURE1400 3-port salt cell

  2. Back To Top    #2

    Join Date
    Dec 2014
    Location
    Santa Ana, CA
    Posts
    523

    Re: Is there such thing as a "little" algae? :)

    Quote Originally Posted by ddas View Post
    Successfully kept my pool algae-free for most of the summer (phew) but I have to say, the balance between keeping the chlorine at just a couple of points vs. letting it go to zero accidentally is a razor's edge. I thought I had fixed my salt cell, and now it's giving me more problems (argh). Turned my back for a day or two, and here we go...

    Checked the pool today and it looks like it's got just the tiniest bit of algae in it. Measured the FC and it was 0, but it couldn't have been at 0 for more than a day or two at the most. I brushed it immediately and poured a gallon of liquid chlorine in (this normally raises FC by 7 in my pool).

    So, another beginner question. Is this just a "little" algae outbreak and am I safe if I keep my chlorine slightly elevated and brush regularly? Or do I need to follow the whole SLAM recipe? I hate to do that at the peak of summer when my kids want to go in and swim every day.

    PH = 7.8 (about to lower it with some muriatic right now)
    TA = 90
    CYA = 50
    you can check FC overnight loss and see for yourself. Please keep SWG off and pump on during the test.
    44k plaster pool, Pentair 011018 pump, DE6020 filter, LED lights, K2006 test kit

  3. Back To Top    #3

    Re: Is there such thing as a "little" algae? :)

    Thanks.

    Bummer. Measured it late last night (5.5), then this morning (3), and that's a pretty sure sign it's in need of a SLAM. Commencing SLAM now.
    Los Angeles (San Fernando Valley)
    15k gallon in-ground (IG) pool (I believe it's plaster)
    DE filter (Heyward), using cellulose instead of DE
    Jandy APURE1400 3-port salt cell

  4. Back To Top    #4

    Join Date
    Dec 2014
    Location
    Santa Ana, CA
    Posts
    523

    Re: Is there such thing as a "little" algae? :)

    Quote Originally Posted by ddas View Post
    Thanks.

    Bummer. Measured it late last night (5.5), then this morning (3), and that's a pretty sure sign it's in need of a SLAM. Commencing SLAM now.
    BTW SWG is mostly intended to relief you from lugging chlorine jugs around, not water testing. I'd keep an eye on it at all times- seasonal / temperature changes surely require adjustments. Glad you caught it early, should be a short SLAM.
    44k plaster pool, Pentair 011018 pump, DE6020 filter, LED lights, K2006 test kit

  5. Back To Top    #5

    Re: Is there such thing as a "little" algae? :)

    Thanks. I'm hoping so. I bumped the chlorine up to about 24 just now (CYA is 50), already brushed the pool once today, will brush it again later, so might even try the OCLT as soon as late tonight, to see if I can pass it. If not, tomorrow.

    Plus I'm overdue for a filter cleaning anyway, so will clean the filter either today or tomorrow too.
    Los Angeles (San Fernando Valley)
    15k gallon in-ground (IG) pool (I believe it's plaster)
    DE filter (Heyward), using cellulose instead of DE
    Jandy APURE1400 3-port salt cell

  6. Back To Top    #6
    VinDeeLoo's Avatar
    Join Date
    Jun 2016
    Location
    Tonkawa/Oklahoma
    Posts
    204

    Re: Is there such thing as a "little" algae? :)

    Your kids can still swim during a SLAM.
    VinDeeLoo
    7600 gallons ~ AG ~ Summer Waves Cartridge C Filter ~ using pump that came with our Summer Waves 18 x 48 pool ~ Taylor K-2006 (SpeedStir & Sample Sizer) ~ no well water or water restrictions

  7. Back To Top    #7

    TFP Guide

    Kiss4aFrog's Avatar
    Join Date
    May 2013
    Location
    Hudson, WI
    Posts
    2,602

    Re: Is there such thing as a "little" algae? :)

    Shouldn't your CYA be up around 80 with a SWCG ?? 50 is easier to SLAM at but after you get done are you going to raise it ??
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

  8. Back To Top    #8

    Re: Is there such thing as a "little" algae? :)

    Quote Originally Posted by Kiss4aFrog View Post
    Shouldn't your CYA be up around 80 with a SWCG ?? 50 is easier to SLAM at but after you get done are you going to raise it ??
    Yes, will do. I just noticed it being low since I don't regularly check CYA.

    Thanks for the tip on it being swimmable during a SLAM. I was hesitant just because I didn't want kids to get red eyes and so on, but good to know it's safe.

    I'm going out to brush it right now (evening) and will do my OCLT tonight too to see if I could have nipped it in the bud that quickly.
    Los Angeles (San Fernando Valley)
    15k gallon in-ground (IG) pool (I believe it's plaster)
    DE filter (Heyward), using cellulose instead of DE
    Jandy APURE1400 3-port salt cell

  9. Back To Top    #9

    Join Date
    Jun 2015
    Location
    Jackson, NJ
    Posts
    123

    Re: Is there such thing as a "little" algae? :)

    I prefer to keep my CYA at 70; in the off chance i have to SLAM running the chlorine needed at CYA 80 is a real bear. And as I've recently discovered, I have to drain a LOT of water to get it from 80 down to 70.
    42' natural free-form pool, vinyl lined, 6' deep end, 21,400 gallons
    2 HP Hayward Superpump, Hayward Aquarite SWG, AquaComfort 125k btu heat pump, 350lb Hayward Pro Series sand filter
    2 skimmers, 2 floor drains, 10 returns (6 in the pool, 2 in the steps, 2 in the swim-out)
    TF-100 Test Kit

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •