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Thread: Raise CYA?

  1. #1
    Member tjwaggoner's Avatar
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    May 2012
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    Ashland KY
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    Raise CYA?

    Just got my tf50 kit today and have my results. Wondering if I should raise my CYA or not. I run an IC40 swcg in 20% output all the time and I'm happy so far.
    Results:
    FC 7.5
    CH 140
    CYA 35-40
    CC 0
    TA 90
    PH 7.8
    10,000gal fiberglass kidney
    3/4 hp whisperflo
    Sand dollar SD80
    IC40 SWCG
    (2) PAL2000 multi colored LED lights
    all 2" plumbing
    no water features/no spa
    TF Testkit

  2. #2
    Mod Squad jblizzle's Avatar
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    Re: Raise CYA?

    As you know, the general recommendation is 60-80ppm for CYA with a SWG. But, if you have little sun, then maybe you can get by fine with the lower level.

    Are you then running the pump 24/7? Your FC is a little high for a CYA of 40. 20% is as low as you can go correct? You could cut back run time to lower the FC level. If you raised the CYA, it may protect more FC and allow you to cut back run time even further to save money.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, Dolphin Diagnostic Robotic Cleaner, TF-100 test kit w/ SpeedStir
    Gone: Hayward RS1500 pump, undersized DIY solar heater, Dolphin Dynamic Robotic Cleaner
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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  3. #3
    Member tjwaggoner's Avatar
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    Raise CYA?

    Yeah I know. I don't currently have a timer though. The pool gets full sun from morning to night. I was actually afraid the fc would be a lot higher.
    10,000gal fiberglass kidney
    3/4 hp whisperflo
    Sand dollar SD80
    IC40 SWCG
    (2) PAL2000 multi colored LED lights
    all 2" plumbing
    no water features/no spa
    TF Testkit

  4. #4
    Mod Squad jblizzle's Avatar
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    Re: Raise CYA?

    Pretty cheap to add a timer ... will save you more in electricity cost in just a few months.

    Did you already replace your pump? Going to a 2-speed could work if you want to leave your pump on 24/7.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, Dolphin Diagnostic Robotic Cleaner, TF-100 test kit w/ SpeedStir
    Gone: Hayward RS1500 pump, undersized DIY solar heater, Dolphin Dynamic Robotic Cleaner
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. #5
    Member tjwaggoner's Avatar
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    Raise CYA?

    I'm planning to add one. Looking at the aube Honeywell digital at the moment. Thought I would give my electrician buddy a breather after getting my swcg hooked up. I wish they made a timer that would replace a standard switch that was rated for that service load. Be much cleaner looking. Not crazy about yet another grey box hanging off my house
    10,000gal fiberglass kidney
    3/4 hp whisperflo
    Sand dollar SD80
    IC40 SWCG
    (2) PAL2000 multi colored LED lights
    all 2" plumbing
    no water features/no spa
    TF Testkit

  6. #6
    Member tjwaggoner's Avatar
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    May 2012
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    Ashland KY
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    Raise CYA?

    Well after several cooler cloudier days my FC today is 12. Guess I'm going to have to get a timer on that pump or just start turning it off at night in the meantime. Doubt switching to the 3/4 hp pump will make any difference running it 24/7. They ordered the wrong pump so it will be installed this week sometime.
    10,000gal fiberglass kidney
    3/4 hp whisperflo
    Sand dollar SD80
    IC40 SWCG
    (2) PAL2000 multi colored LED lights
    all 2" plumbing
    no water features/no spa
    TF Testkit

  7. #7
    Administrator JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    34,658

    Re: Raise CYA?

    Even the 3/4 HP pump is significantly too large to need to be run anywhere close to 24/7.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  8. #8
    Member tjwaggoner's Avatar
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    May 2012
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    Ashland KY
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    Raise CYA?

    Yes I figured that. I'm just not crazy about installing a timer at the moment
    10,000gal fiberglass kidney
    3/4 hp whisperflo
    Sand dollar SD80
    IC40 SWCG
    (2) PAL2000 multi colored LED lights
    all 2" plumbing
    no water features/no spa
    TF Testkit

  9. #9
    Senior Member
    Join Date
    May 2007
    Posts
    750

    Re: Raise CYA?

    Can't the SWG be programmed to only generate for a specific time? I was under the impression they could, but now I'm wondering...

  10. #10
    Member tjwaggoner's Avatar
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    May 2012
    Location
    Ashland KY
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    88

    Raise CYA?

    The pentair doesn't on it's own. I've heard the ones with inbuilt timers are unreliable though (the timer).
    10,000gal fiberglass kidney
    3/4 hp whisperflo
    Sand dollar SD80
    IC40 SWCG
    (2) PAL2000 multi colored LED lights
    all 2" plumbing
    no water features/no spa
    TF Testkit

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