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Thread: 2 pumps in 2years...need recomendations.

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    2 pumps in 2years...need recomendations.

    Long time lurker, first time poster. First this is a great forum and appreciate the information I have already learned.


    Now a quick synopsis of my situation. My wife and I are first time pool owners and this is a learning process. We recently lurched a home with a pool (10yrs old) in 11/2013. Home was a foreclosure and bank getting the home ready for market purchased a new pump in 5/13. Our offer was accepted and during a pre-purchase inspection noticed pump was making noise and was replaced under warranty in 12/2013.



    Around December 2014 the pump began to make noise but had not impact on performance. In the last 2 weeks it's been losing pressure despite a a clean DE filter, no clogs, air leak, etc. It will run fine but within 1-3hrs water pressure is very low, very little coming out of sprays and water features.

    So I'm considering a replacement motor but hesitate with since short life span. I'm pretty mechanical but cannot figure out why they failed so soon. Only then I noticed was pool company did not bolt pump to slab.

    Also considering a variable speed pump.

    Any help will be greatly appreciated.
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    duraleigh's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    Welcome to the forum.

    Is the pump running now? If so, what kind of noise is it making? Is it keeping your water clear?

    Are you asking for suggestions on a new pump?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    PoolESQ's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    Some noises are easily fixed, some aren't. What is it you're looking to do with yours? Fix or replace?
    Replastered 2015: Sunstone Quartz Midnight Blue 16x32 rectangular gunite with in-pool spa....18,000 gallons. Autopilot Total Control System with SWG and acid pump. Pentair Clean & Clear 420. Auto cover. TF-100.

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    Re: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by PoolESQ View Post
    Some noises are easily fixed, some aren't. What is it you're looking to do with yours? Fix or replace?
    Sorry, only part of the post was posted...I edited OP
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    bobodaclown's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    Did they replace the whole pump or motor? If it's squealing it could be bearings. Are you comfortable checking the impeller or obstructions/trash/debris? Depending on your energy cost less than $.30 KWH a 2-speed motor/pump my be more cost effective.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    Re: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by bobodaclown View Post
    Did they replace the whole pump or motor? If it's squealing it could be bearings. Are you comfortable checking the impeller or obstructions/trash/debris? Depending on your energy cost less than $.30 KWH a 2-speed motor/pump my be more cost effective.
    They only replaced the motor. Should I replace the front part of the pump, it looks brand new?
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    mas985's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    Pump motors should last 10 yrs or more if properly maintained. The wet end should last much longer.

    So I would replace the motor but you should figure out why they are failing so soon. Was the motor leaking prior to failure?

    If you having bearing problems in might be the seals that are failing first. Once the seal fails, it will start to leak water and usually on the motor bearings. This in turn rust the bearings and then the motor fails.
    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: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by mas985 View Post
    Pump motors should last 10 yrs or more if properly maintained. The wet end should last much longer.

    So I would replace the motor but you should figure out why they are failing so soon. Was the motor leaking prior to failure?

    If you having bearing problems in might be the seals that are failing first. Once the seal fails, it will start to leak water and usually on the motor bearings. This in turn rust the bearings and then the motor fails.
    That is most concerning, the short life span. Only thing I can think of is when they replaced the motor they did not replaced the seal and it leaked causing bearing failure. Currently it sounds as if the bearings are failing.
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    mas985's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    Or they did not install the seals properly which is not uncommon. Another possibility is that they used a rebuilt motor which usually doesn't last as long as a new one.
    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: 2 pumps in 2years...need recomendations.

    Ding ding ding. I think we have a winner. Reusing seals it's penny wise and pound foolish. Always replace shaft seal with motor.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    Re: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by mas985 View Post
    Or they did not install the seals properly which is not uncommon. Another possibility is that they used a rebuilt motor which usually doesn't last as long as a new one.
    It's a rebuilt unit if I had to guess, and most likely reused the seal.
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    Re: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by bobodaclown View Post
    Ding ding ding. I think we have a winner. Reusing seals it's penny wise and pound foolish. Always replace shaft seal with motor.
    This my guess, during disassemble I noticed the bolts holding the motor to the front strainer basket were only hand tight. This is why I think water was getting in along with the seal.

    Is it worth trying to change the bearings or cut my losses and buy a new motor?
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    Re: 2 pumps in 2years...need recomendations.

    Depends on if you have more time our money. Check out you tube. There are lots off videos on the procedures. What's the condition of the housing?
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

  14. Back To Top    #14

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    Re: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by bobodaclown View Post
    Depends on if you have more time our money. Check out you tube. There are lots off videos on the procedures. What's the condition of the housing?
    Thanks for he info, can you recommend a variable motor only with a square flange?
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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    mas985's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    A variable speed or two speed motor? Personally, I wouldn't go with a variable speed replacement motor. They seem to have more issues than a new VS pump.
    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

  16. Back To Top    #16

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    Re: 2 pumps in 2years...need recomendations.

    Quote Originally Posted by mas985 View Post
    A variable speed or two speed motor? Personally, I wouldn't go with a variable speed replacement motor. They seem to have more issues than a new VS pump.
    I guess whichever offers the best value in savings and most dependability.

    I'm buying a new motor, figured why not opt for energy savings as well.
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

  17. Back To Top    #17
    mas985's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    Well a two speed would give almost as much in energy savings as a VS while I have not been too impressed with the VS add on motors. If you really want a VS, then I would go with a new one.
    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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    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

  19. Back To Top    #19
    mas985's Avatar
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    Re: 2 pumps in 2years...need recomendations.

    That is a full rated motor. Is your 2 HP a full rated pump or an up rated pump? Do you have a pump model# or a service factor off the old motor?
    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: 2 pumps in 2years...need recomendations.

    This is what I have... 20150529_144753.jpg
    Attached Images Attached Images
    Inground gunite 15,000gal with water fall spa, US Motors Ecotech variable speed 3hp pump, chlorine 6lb DE filter.

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