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Thread: Need help finding best/effective way to filter & remove excessive dead algae

  1. Back To Top    #1

    Join Date
    Jul 2015
    Cooksville, IL

    Need help finding best/effective way to filter & remove excessive dead algae

    Nightmare this year! Solar cover left on since early last Fall 2014 (winter cover always blown to shreds & useless regardless of reinforcements used so left thickest solar cover on since Sept - June - to "winter"). Started opening 6/9 w/ masses algae as expected + significant dead algae particles still left from last year (never 100% removed due to heater/filter repairs). + this June was heaviest rains on record. Achieved balanced pool chemistry, but profoundly cloudy - visable fine goopy floating particles. Got chlorines good & high for floc shut down. (Let floc sit 48 hrs w/ alot of hard rains in between - since did not look like anything happened - restated filter w/o vac at 72 hrs to get chlorine up). Determined floc could be working although could not see bottom yet. Got chem balanced - got chlorine high - 2nd floc treatment. Again hard rains (pop up tstorms not predictable). Did a "blind vacuum" 48 hrs later & removed more debris in 5 years combined. Stirring it all up - (noticed after all stirred up - pool went green again like it was trapped under debris layer). Needed to repeat vac/chems BUT had to leave for 6 day trip at this stage of course - left chlorinator on high added pucks to floater & return. Had house sitter add granular daily until it was out (hectic & ran out rest of chems).
    Upon return Mon 6/29 - no chlorine (expected) & green but could see bottom! Alot of green on bottom in spots (side walls clear) (filter was good & full needed BW). Filtering; restarted & balanced chems including adding Sea - Klear 90 Day Algaecide Remove/Prevent at appropriate high dose visable algae. Water holding chlorine well now waiting for algae to die off fully before floc vac waste. Wondering - what is best way in addition to floc (as soon as water goes blue-white cloudy) to get all these 1 micron dead algae particles out? New sand 6/9 start (but now using reg size filter on pool vs my big inground filter used every year prior until early freeze & crack last Oct). How many days would I expect to see water clear after next floc vac to waste? (This will only be 2nd vac - but 1st vac while "blind" took 3 hours going by feel). Will sand filter need zeolite, an aid (will that 1 dose filtered floc help sand p/u finer particles); is there anything will get the 1 micron particles when sand gets 2 micron? (My 1st post hope signature attaches). Thank you in advance (lots of info in here).
    2015 is 11th year as pool owner; 5 years in ground 24K Gallons; tile & dropped vinyl. Past 6 years 24 ft round 52 in deep; sand filter (central IL in middle of corn/soybean fields)

  2. Back To Top    #2

    Join Date
    Jun 2013
    Augusta, GA

    Re: Need help finding best/effective way to filter & remove excessive dead algae

    Wow, that as quite the wall of text you left us there, lol! Ok, here goes:

    1st: STOP throwing chemicals blindly into the pool, especially the floc. Read Pool School by clicking the link at the top of the page.
    2nd: You mentioned several times that your chems were balanced, but you never stated what the levels were. We need to know that in order to help you.
    3rd: Where are you getting your water tested/What kind of test are you using? If the pool store is testing your water, stop and get one of the reccomended test kits.
    4th: Dont worry about filtration beyond what your sand filter can provide. If you follow the advice on this site, you will have crystal clear water with your current filter.
    30'x52'' AGP 21,000 Gallons
    TWM 2.64 SF Sand Filter w/ Century 1.5 HP Pump
    BBB'er for life!
    TF-100 Test Kit

  3. Back To Top    #3
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Need help finding best/effective way to filter & remove excessive dead algae

    Welcome to TFP and X2 on the advice Tommy gave you!
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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