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Thread: Run the filter longer or up the SWCG power level?

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    Join Date
    May 2007
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    Run the filter longer or up the SWCG power level?

    I've been wondering about the trade off between pump runtime vs increasing the SWCG power level to maintain the proper FC level. Currently if I just run the pump/filter for the amount of time that I need to keep the water crystal clear it requires me to have my SWCG on the highest power level (3 I believe) to maintain the proper FC.

    If I run the pump/filter for longer than needed just for clear water, I can run the SWCG at a lower power level (2).

    Anyone know which would be best as far as total cost? Obviously running the pump longer wears the pump and costs electricity. I believe running the SWCG at a power level of 3 instead of 2 puts more wear on the SWCG, or does it?

    Currently I've chosen running the pump longer and using a power level of 2 on the SWCG. Just curious as to what others are doing.

    thanks,
    dave

    P.S. - I also run a CYA of 90 as I have found that it does save me chlorine even though I have to maintain a tad higher FC.
    15,500 gal, inground gunite pool with 7 ft spa, 2 speed pump 2hp/.33hp, 3/4 hp booster pump, Intermatic P1353 timer, AutoPilot SC-48, Sand filter with ZeoBest, Heater, that I never use . . .

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    Mod Squad JohnT's Avatar
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    Re: Run the filter longer or up the SWCG power level?

    Just balance it out to whatever you need for the pump to run to keep the pool clear and adjust the SWCG to make the right amount of chlorine with that run time. The effect on the SWCG is going to be the same.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Run the filter longer or up the SWCG power level?

    Quote Originally Posted by JohnT
    The effect on the SWCG is going to be the same.
    I'm not sure i understand this statement? Can you clarify?

    I set the pump run time first, then alter the SWG on time/power level to keep the FC level where I want it. Of course, if the pump run time is such that the SWG is on full power, at the highest setting, you might want to alter the pump time (or if the SWG is severely undersize for the pool). But, in most cases, a pump run time to equal 1-2 turnovers in 24 hours will result in an acceptable FC and still keep the SWG at an acceptable level of power and output settings.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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    Mod Squad JohnT's Avatar
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    Re: Run the filter longer or up the SWCG power level?

    Quote Originally Posted by bk406
    Quote Originally Posted by JohnT
    The effect on the SWCG is going to be the same.
    I'm not sure i understand this statement? Can you clarify?

    I set the pump run time first, then alter the SWG on time/power level to keep the FC level where I want it. Of course, if the pump run time is such that the SWG is on full power, at the highest setting, you might want to alter the pump time (or if the SWG is severely undersize for the pool). But, in most cases, a pump run time to equal 1-2 turnovers in 24 hours will result in an acceptable FC and still keep the SWG at an acceptable level of power and output settings.
    The effect on the life of the SWCG cell is about the same running 50% for 10 hours or 100% for 5 hours.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Run the filter longer or up the SWCG power level?

    Ok, I thought thats what you were saying, just wanted to make sure.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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