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Thread: Do I need to SLAM, OCLT passed

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    Do I need to SLAM, OCLT passed

    Here is my situation. First of all we have had tons of rain in the DFW area. So constant battle with keeping pool water level at a manageable level, maintaining chem balances etc....
    About a week ago I go out one morning and notice around the edges of the pool's swinouts, steps and the safety ledge that runs the entire bottom around the pool and a couple areas on the walls in the deep end what looked like maybe a build up of dirt like substance due to the all the rain. So I get the trustee Aqua Bot out and brush the entire pool and let cleaner do its thing. Now the water has never really looked cloudy, buts it's hard to tell since most days in the last several weeks are overcast. I can see the bottom. The above process cleans up the pool nicely and at night with the light on is when it looks clearer.
    Test results over the last week are
    FC 3.5 to 4 depending on what day and time test was done
    CC 0.5
    TA 100
    PH 7.4 to depending on day tested
    wtr temp has varied from 71-78F
    CYA 60
    Cart filter was cleaned a couple days ago.

    So last evening I see the same thing appearing. So at 8PM start the OCLT FC 4, CC 0.5
    This morning at 7AM FC 4, CC 0.5

    I then go thru the same process of brush and run Aqua Bot. I very carefully swiped as area with my finger to see if I could tell if it is just dirt deris or something else.
    It appears to be slightly green in color. So I am assuming that I have a extremely mind beginning of an algae bloom even though the OCLT passed.
    So should I SLAM anyway?
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    If your pool is clear and blue then I don't see any reason for a SLAM based on your post.

    - - - Updated - - -

    You could bring it up to SLAM level for 24 hours to be on the safe side if you want.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Do I need to SLAM, OCLT passed

    Iam going to b outof town all weeked. So do u think it ok to put 1 trichlor tab in as added prevention
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    Does the green brush away if you brush it?
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Do I need to SLAM, OCLT passed

    Yes it brushes away like sand or dirt would actually my finger w light pressure does it
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    I would say most likely it is just segment of some sort, so it will be your choice.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Do I need to SLAM, OCLT passed

    Since I have 2 jugs of bleach which according to pool math I need 2.25 jugs to reach SLAM based on my CYA. I will just pour those in and leave the pool system as is. Then see what I see Sunday afternoon when I get home
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    Sounds good.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Do I need to SLAM, OCLT passed

    I agree with Azgirl.

    nothing there to say you have algae, but your FC is definitely below recommended level for your CYA.

    PUt in some bleach, and give it a test when you get back.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
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    Re: Do I need to SLAM, OCLT passed

    Quote Originally Posted by Divin Dave View Post
    I agree with Azgirl.

    nothing there to say you have algae, but your FC is definitely below recommended level for your CYA.

    PUt in some bleach, and give it a test when you get back.
    For Salt water my FC of 4 is right on for a CYA of 60
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    Quote Originally Posted by rmturner54 View Post
    For Salt water my FC of 4 is right on for a CYA of 60
    True,
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    Re: Do I need to SLAM, OCLT passed

    Thanks. Ill probably bump it up a bit to 70
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

  13. Back To Top    #13

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    Re: Do I need to SLAM, OCLT passed

    Well it's been almost a month since I started this post. I woke up this morning to the same stuff again. Kind of a light, what appears to be a dusting of a brownish looking substance. Again I can lightly fan the water with my hand right above it and it boils up like dirt.Then it shows a brownish greenish color.Water looks good until I disturb all of it. Same process again, brush and run robot. I plan on doing the OCLT tonight again.
    FC 5.5
    TA 90
    PH 7.6
    CYA 75
    CH up to 190 from 160 two days ago.
    Salt -3100
    OCLT TBA
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    I too have a FB pool and am here in TX. Lots of heat lately. First thing I notice on your recent test is the FC is low. Based on your CYA (rounded up to 80) and SWG system it should be a 6. The recent sun has probably been brutal on your FC. It has for me. I suspect that you should perform an OCLT as soon as possible to confirm any FC loss and do a SLAM if needed. If you continue to see a dusty green substance on your pool floor when you brush, SLAM it. Mine was that way, and it also laid on and in my LED lights as well.

    Also, add some liquid chlorine right away just to spike that FC a couple points higher until you get your SWG dialed-in where it needs to be.
    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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    Re: Do I need to SLAM, OCLT passed

    I have started the first step in the oclt.
    It's 730 pm. The pump has been off for 1 1/2 hour's. Overcast so Sun not on pool.
    Fc 5.5
    CC 0
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    When you test your pump should be on for at least 30 mins before you get your test water.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Do I need to SLAM, OCLT passed

    On. I thought it said off. Last does of chlorine no sooner than 30 min before test.
    Anyway. Tested again at 6am
    Fc 5
    Cc 0
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

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    Re: Do I need to SLAM, OCLT passed

    Okay, so let's re-cap ... FC overnight loss less that 1ppm - CHECK; CC less than .5 - CHECK; so if your water is also clear .... CHECK - SLAM is done. Congrats! Was that your only question?
    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
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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  19. Back To Top    #19

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    Re: Do I need to SLAM, OCLT passed

    Check 3 times. Thanks. I guess iam over cautious when i see stuff in the water that does not look right.
    12 x 26 Viking FG IG, Bermuda Model, 3 1/2' to 5', 7000 Gallons, Diamond Series Maya, Hayward 1 1/2 HP Maxflo VS, Hayward Stay Clear Plus Cart Filter C17502(S), Hayward Aqua Rite SWG w/T3 cell, Color Changing FIBERSTAR Lighting, Aqua Bot Supreme Robotic cleaner, Brushed Concrete with CCI Liberty Tan color, Taylor K-2006 test kit, Armor Foundation penetrating concrete sealer(lifetime warranty).

  20. Back To Top    #20

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    Re: Do I need to SLAM, OCLT passed

    In Dallas as well. I had a lot of soil runoff from flower beds (and the yard in general) that I never had in the past, and had similar balancing issues (and was never sure if I had algae or just a lot of sediment). Running my pump 24 hours a day, and constantly breaking down and cleaning my filter, probably helped just as much as balancing the water.
    30k gallon IG PebbleSheen refinished 2014
    60sqft FNS Plus DE wih Proguard Cellulose, 1.5hp 2speed WhisperFlo
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