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Thread: New SWG- FC still high. Cut down on run time or %?

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    zimm's Avatar
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    New SWG- FC still high. Cut down on run time or %?

    My new pool pilot nano+ is running great. Before I left for vacation, I SLAMmed the pool and left 3 pucks in a floater. When I got back, FC was around 14. I got all the numbers in check and added the nano+. Right now it's running 8 hours a day and has been on for nearly two weeks. The FC had not been coming down, so I went from 50% to 35% on the nano. Now after a few more days I'm still seeing FC of 9.5. Pool looks awesome. I'm thinking about cutting the run time back to 6 hours a day before I drop the % anymore and see what happens. Any thoughts?

    Last full test was on 7/28 and I had:
    FC 11.5
    CC 0
    TA 90
    Cal 300
    CYA 45
    Salt 3000
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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    Butterfly's Avatar
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    Re: New SWG- FC still high. Cut down on run time or %?

    I suggest that you raise CYA to about 70 and turn off the SWG until the FC drops to about 5 or 6ish.
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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    harleysilo's Avatar
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    Re: New SWG- FC still high. Cut down on run time or %?

    How much full/direct sunlight is your water getting?
    18'x43' Sport Pool
    19,000 Gallons Vinyl Liner 3'-3.5'-4'
    SWCG and D.E. Filter
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    duraleigh's Avatar
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    Re: New SWG- FC still high. Cut down on run time or %?

    +1 what Butterfly said.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  5. Back To Top    #5
    zimm's Avatar
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    Re: New SWG- FC still high. Cut down on run time or %?

    It gets partial sun through the day. Look at my avatar pic- the pool is heavily shaded in the morning and late afternoon due to lots of tall trees around. I forgot, I did put a sock of CYA in since that test and it's up around 70 right now. I'll turn off the pilot and let it settle down. Thanks for the suggestions.
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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