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Thread: High FC reading

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    chezdude's Avatar
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    May 2012
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    Hillsborough, NC
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    High FC reading

    This is my first Fall/Winter with my new pool, so still new to all this. Pool reading taken this morning:

    FC - 12.5
    TC - 12
    pH - 7.8-8.0 (acid demand was 1 drop)
    TA - 50
    CYA - 32
    CH - 170
    Temp - 59 F pool, 62F air
    salt - 2800 ppm (SWG reading, but tests with strips show it to be accurate)

    My FC has been creeping up over the past two weeks. I'm thinking its due partly to the weather as there hasn't been a lot of sunny days in the past two weeks. I adjusted my pump schedule today to 4Hr high and rest Low speed and turned SWG down from 20% to 10%.

    Outside adding some CYA and Calcium, any other suggestions for getting the FC down in line for the coming winter?
    14,000g custom shape IG gunite/plaster with built-in 7' spa - Hayward 2HP 2 speed - Hayward 450sft cartridge filter - Hayward 400k BTU nat gas heater - spillover on spa and 24" "sheer" water feature - Hayward SWG - Turbo Shark robotic cleaner - ColorRite LED lights - Taylor K-2006 test kit

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    Mod Squad jblizzle's Avatar
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    Re: High FC reading

    If lowering the output percentage does not lower the FC enough, then you will need to lower the run time. The SWG it's likely still producing even on low pump speed.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    4knights's Avatar
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    Re: High FC reading

    My SWCG produces (is on) anytime the pump is on.
    Ron- Kansas. IG fiberglass, Riviera 30 Freeform 13600 gallons,
    EasyTouch 4 w/IC20 SWCG, Pentair Whisperflo 1hp, 2 speed 220 pump, Hayward ProGrid 4820 DE filter using Eco Klean instead of DE, 2 Savi Melody 12v 5 color LEDs, Raypack 266k btu millivolt heater, Arctic Armour Mesh custom safety cover (Total self Install) TF-100 test kit w/Magic stir.

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    phipsi1237's Avatar
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    Re: High FC reading

    Using the EasyTouch, you can set a different circuit and activate it when not in pool mode. This will run the pump but not the SCG.
    14.5K gal Plaster IGP, Intelliflo VS, EasyTouch 8, SWG, IntellipH, Clear and Clean 420 Cartridge Filter, Attached Spa, H400IDL2 NG Heater

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    chezdude's Avatar
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    Re: High FC reading

    Turns out the SWG doesn't run when the water temp drops below about 50 F.

    And to turn it off without turning off pump, just drop % to 0. My SWG runs as a percent of pump run time.

    I haven't moved to full winter schedule where pool co instructed me to only run pump 4 hrs per day. I've been waiting for all leaves to drop first.

    Heath
    14,000g custom shape IG gunite/plaster with built-in 7' spa - Hayward 2HP 2 speed - Hayward 450sft cartridge filter - Hayward 400k BTU nat gas heater - spillover on spa and 24" "sheer" water feature - Hayward SWG - Turbo Shark robotic cleaner - ColorRite LED lights - Taylor K-2006 test kit

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