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Thread: is this dead algae?

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    MirellaJoe's Avatar
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    Question is this dead algae?

    Every morning i wake up and check my pool and at the bottom of the pool there is always this black stuff, not sure if it's just dirt or dead algae, i just currently tested my pool water and this is what i got

    FC- 3
    TCI- 3
    TA- 120
    PH- between 8.4-9 (which i know is high)
    TH-250
    CYA- 30-50

    So what is this stuff at the bottom of my pool? also when i vacuum it up with my pool blaster max all this dusty powder comes from it and makes the pool cloudy







    and this is what my pool water looks like after i vacuum, pictures dont do justice but it's cloudy...

    Intex Ultra Frame 16'x48" sand filter w/intex SWG.
    Pool Blaster Max Vacuum
    3rd year with Intex and no problems
    Pentair Mastertemp BTU 125/ propane
    Taylor K2006 Complete FAS-DPD

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    laceygirl's Avatar
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    Re: is this dead algae?

    Looks like you may need to slam the pool.... Bring your pH down first, and then I would slam it... It definitely looks like algae.... And from the surface of the water, you've got lots of pollen in your area.....
    Intex Rectangle 18 x 9 x 52', 4544 gallon (18000 litres), 0.75 hp pool pump, 100 sqft Zodiac Titan Cartridge Filter - 40mm, Stenner Peristaltic Pump chlorine injection system, Intex Over The Wall Skimmer, Intex Fittings with 40mm plumbing Lil Patch Of Heaven. Build/Construction http://www.troublefreepool.com/threa...lice-of-heaven

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    MirellaJoe's Avatar
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    Re: is this dead algae?

    ya i got tons of pollen it drives me friggen crazy!!! now how do i lower my ph ?
    Intex Ultra Frame 16'x48" sand filter w/intex SWG.
    Pool Blaster Max Vacuum
    3rd year with Intex and no problems
    Pentair Mastertemp BTU 125/ propane
    Taylor K2006 Complete FAS-DPD

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    duraleigh's Avatar
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    Re: is this dead algae?

    now how do i lower my ph ?
    read "The ABC's of Pool Water Chemistry" up in Pool School....it'll tell you how to make all the adjustments.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    MirellaJoe's Avatar
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    Re: is this dead algae?

    ok thanks so i need to add muriatic acid to lower my ph. got that. but i'm confused on how to use the pool math i know you must think i'm dumb but i'm not sure what it means 31.45% -20degree baume?... this sounds chibberish to me, is that the strength of the muriatic acid? so if i got this correct i need to add 18 oz of 31.45% -20degree baume (muriatic acid) ? wait for the ph to be between 7.7 and 7.8 and then slam the pool and once im done slaming the pool i can add 6oz of bleach ( going by the pool math).

    Do i continue to run my sandpump filter while doing all this? and when do i turn on my SWG?
    Intex Ultra Frame 16'x48" sand filter w/intex SWG.
    Pool Blaster Max Vacuum
    3rd year with Intex and no problems
    Pentair Mastertemp BTU 125/ propane
    Taylor K2006 Complete FAS-DPD

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    Mod Squad woodyp's Avatar
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    Re: is this dead algae?

    31.45% IS 20 baume. Id' shoot a little lower down to 7.2 pre-SLAM. Only takes about 30 minutes of circulation time. Run pump/filter 24/7 until SLAM is complete. Add salt. Circulate another 24 hours...........then fire up the SWG.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    frustratedpoolmom's Avatar
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    Re: is this dead algae?

    Before you go through the hassle of a SLAM, do an OCLT and confirm organics before you proceed... JMHO.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    MirellaJoe's Avatar
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    Re: is this dead algae?

    thanks will do that
    Intex Ultra Frame 16'x48" sand filter w/intex SWG.
    Pool Blaster Max Vacuum
    3rd year with Intex and no problems
    Pentair Mastertemp BTU 125/ propane
    Taylor K2006 Complete FAS-DPD

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