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Thread: Pump Run Time?

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    WestSidePool's Avatar
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    Pump Run Time?

    I followed the instructions on the "Pool School" board to figure out my pump run time, but it seems relatively low from what i have been told by from my pool installer and the pool store, so any clarification would be greatly appreciated.

    I have a 20,000 gal pool
    My filter pumps 96 gpm

    20,000 / 96 = 208 min

    208 min / 60 = 3.5 hours.

    Is that correct, or am i totally doing the figuring it wrong ?

    Thanks in advance.
    Eric

    IG 17x33 Grecian - Vinyl Liner (21k gallons), Hayward Pro-Grid DE 4820 filter, Hayward Super Pump, CompuPool SWG CPSC36, TF-100 Test Kit

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    mas985's Avatar
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    Re: Pump Run Time?

    How do you know your pump flow rate is 96 GPM? If you are using the number on filter label, that is a recommended maximum, not necessarily what your pump will produce. That depends on the size pump you have and the head loss in the plumbing.

    What is your pump model and filter pressure reading?
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater, ThePoolCleaner

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    WestSidePool's Avatar
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    Re: Pump Run Time?

    Like i said, i was probably way off.

    My pump is a Hayward Super Pump
    Model is C48L2N134B1
    1 1/2 hp motor

    Pressure reading was at about 12-15 last night.
    Eric

    IG 17x33 Grecian - Vinyl Liner (21k gallons), Hayward Pro-Grid DE 4820 filter, Hayward Super Pump, CompuPool SWG CPSC36, TF-100 Test Kit

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    mas985's Avatar
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    Re: Pump Run Time?

    Flow rate is probably some where between 70-80 GPM for a turnover of 4.2-4.8 hours.
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater, ThePoolCleaner

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    WestSidePool's Avatar
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    Re: Pump Run Time?

    Thanks for your help, i really appreciate it.
    Eric

    IG 17x33 Grecian - Vinyl Liner (21k gallons), Hayward Pro-Grid DE 4820 filter, Hayward Super Pump, CompuPool SWG CPSC36, TF-100 Test Kit

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