Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: How to vacuum algae settled to bottom without stirring it up

  1. Back To Top    #1

    Join Date
    Jun 2007
    Location
    North Carolina
    Posts
    82

    How to vacuum algae settled to bottom without stirring it up

    We never covered our pool this winter, and I actually think it's the cleanest it's ever been upon "opening". There isn't near as much algae as we've had in the past and this time, it's a thin layer settled on the bottom. Is there any way possible to vacuum it without stirring it all up? I know as soon as I turn the pump on, it's going to stir it up.



    I just thought of something. If I get the pool to shock level, will that get rid of the algae that is settled on the bottom? Or is vacuuming it the only way to get rid of it?
    27' ABG
    Sand Filter

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: How to vacuum algae settled to bottom without stirring i

    The algae on the bottom is most likely already dead. If not, then adding chlorine will kill it. In either case it will remain settled on the bottom until it either gets vacuumed up or stirred up enough to get pulled into a skimmer or drain.

    If turning on the pump is enough to stir it up into the water, then it should get caught by the filter eventually. Your only other option is to vacuum it up (very carefully) with the main valve set to waste (which unfortunately drains the pool fairly quickly).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,085

    Re: How to vacuum algae settled to bottom without stirring i

    Vacuuming successfully without disturbing debris on the bottom is PAINSTAKINGLY slow. I usually lose patience after a few minutes and just let it stir up. As JasonLion says, the filter will pick it up and it keeps my blood pressure within acceptable limits
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: How to vacuum algae settled to bottom without stirring i

    You have to sneak up on it. Let the vacuum suck it in before you move the head towards it.

    If the returns disturb it, maybe try aiming them up a little?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  5. Back To Top    #5

    Join Date
    Jun 2007
    Location
    North Carolina
    Posts
    82

    Re: How to vacuum algae settled to bottom without stirring i

    Thanks everyone. I'm just thrilled that I can clearly SEE the bottom and that the algae isn't several inches thick like it's looked in the past. It's just a thin little layer.
    27' ABG
    Sand Filter

Posting Permissions

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