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Thread: Pump very slow to prime, appears to be tripping GFCI circuit breaker

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    Join Date
    Jun 2016
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    Massachusetts
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    Pump very slow to prime, appears to be tripping GFCI circuit breaker

    I have an Hayward 1hp SuperPump and it has been taking longer and longer to prime and "fire up" as the summer goes on. A couple months ago I would hear it click on, and then start pumping a few seconds later. If I turn it off and then back on it fires up quickly but now it takes 7-10 seconds to start pumping if it has been off for a few hours. Also, it often trips my GFCI circuit breaker before it has a chance to start pumping. Has anyone heard of this happening? The circuit trips even if it hasn't rained for days and everything appears perfectly dry. I am thinking I need a new pump. If so, does anyone have any recommendations? The current pump is 1 hp but I think I need 1.5hp for our 35-40k gallon pool. Possibly a variable speed depending on price and power savings.

    Appreciate any advice in advance.
    40x20 in ground gunite - ~35k gallons - Hayward C5030, 525 sqft cartridge filter - 1hp Hayward Super Pump - Dolphin Triton vacuum - 2 skimmers, 4 return jets

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    mas985's Avatar
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    May 2007
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    Pleasanton, CA
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    Re: Pump very slow to prime, appears to be tripping GFCI circuit breaker

    How old is the pump? Sounds like the bearings might be going out. Is the pump any louder than it used to be?
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Pump very slow to prime, appears to be tripping GFCI circuit breaker

    Quote Originally Posted by mas985 View Post
    How old is the pump? Sounds like the bearings might be going out. Is the pump any louder than it used to be?
    I am not sure how old the pump is, I just bought the home 6 months ago. I can't decipher the age from the label but I suspect it is at least several years old. I don't believe it is any louder than before but I've only been using it since we opened the pool in May. It just seems to take longer to start up.
    Pool Pump Hayward SuperPump 1hp.jpg
    40x20 in ground gunite - ~35k gallons - Hayward C5030, 525 sqft cartridge filter - 1hp Hayward Super Pump - Dolphin Triton vacuum - 2 skimmers, 4 return jets

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    mas985's Avatar
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    May 2007
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    Re: Pump very slow to prime, appears to be tripping GFCI circuit breaker

    More than likely the bearings are going out. You can replace that motor with a two speed: STS1102RV1
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    bobodaclown's Avatar
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    Apr 2011
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    Murrieta, CA
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    Re: Pump very slow to prime, appears to be tripping GFCI circuit breaker

    I think the motor is from 2009. CE I think is the date code.
    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

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