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Thread: Maintain chlorine levels

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    meatloaf's Avatar
    Join Date
    Feb 2008
    Gilbert AZ

    Maintain chlorine levels

    Although I don't actually "close" my pool for the winter, how long and at what levels do I have to maintain the chlorine level?
    Currently the filter runs 2 - 1 1/2 hour cycles (6 AM & 9 PM) and my chlorine level is 2, adding 32 Oz of 6% per evening.
    Is there a minimum water temp where the fear of algae forming in the pool is lessened?
    My other tests are:
    FC 2
    PH 7.6 ( adding 5 oz of 31.5% each morning)
    CH 460
    ALK 105
    CYA approx 55
    CSI Index 0
    SALT 3200
    Water temp 68*
    I added salt to the pool this year just to see how I liked it. Maybe I can get a SWG next year if I can find a good one at a good price.
    My pool is a 10,500 gallon (420 Sq Ft ) kidney shape. STA-RITE HRPB30, Sand filter 30" 98 GPM, 1 HP Maxi-Glas 2 pump, BBB Method, Taylor K-2005 test kit, 50 Watt 12V low-voltage pond light illuminates the pool at night for a nice soft glow.

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    Join Date
    Mar 2007
    Coastalish 'down easter'

    Re: Maintain chlorine levels

    I'll leave the chlorine question to folks who could answer more completely than I.

    As for the temp question - below 60* the algae slows down quite a bit, below 50* you've gotta work to make algae grow
    Luv& Luk

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Maintain chlorine levels

    Is there a minimum water temp where the fear of algae forming in the pool is lessened?
    My anecdotal experience indicates it is sort of a sliding scale......the lower the temp, the less chance of algae.

    Probably starts slowing down a little in the 70's and perhaps close to non-existent in the 40's. I have had algae in my pool with water temps in the 40's, however.....just not very much and caused by complete neglect on my part.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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