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Thread: Scary Noisy Pool Pump (with video)

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    Scary Noisy Pool Pump (with video)

    Hello all, I woke up this morning to a very noisy "hollow" sound coming form the Pool Pump.
    Please see video here:

    http://www.youtube.com/watch?v=ZQ3rH6ay ... e=youtu.be

    There was also a bit of a burning smell, so I turned off the pump.

    Does anyone know what the problem is? Do you think it is the bearings, motor, belt or maybe I need to "lube" the "O" rings???

    If anyone has any advice or can help, I'd greatly appreciate it.
    In-ground 18000 gallons salt water pool, sand filter, 4-5 feet deep, kidney shaped small pebble tech pool with water feature.

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    bobodaclown's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    Sounds like bad bearings. You can replace the motor only (with appropriate seal) should be only a couple hundred dollars or spend an extra 100 and get a 2 speed.
    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: Scary Noisy Pool Pump (with video)

    Thank you for your response. Um, are the bearings and the motor the same thing?

    Also, what are the benefits of getting a "2 speed"?
    In-ground 18000 gallons salt water pool, sand filter, 4-5 feet deep, kidney shaped small pebble tech pool with water feature.

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    UnderWaterVanya's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    Quote Originally Posted by lavaman
    Thank you for your response. Um, are the bearings and the motor the same thing?

    Also, what are the benefits of getting a "2 speed"?
    Let me take a stab at this. The bearings are parts that keep the shaft of the motor able to turn without a lot of friction. As they wear out the shaft friction rises and eventually it can kill the motor. If you replace them (or have them replaced) chances are the rest of the motor is going to be fine.

    The motor as opposed to the pump - is the entire electrical part of the pump/motor combination. The pump is called the "wet end" btw. The pump has a shaft seal on it that keeps the water out - this too will need replacement if you replace bearings or motor.

    A two speed motor allows you to save $ on electricity and reduce the noise from the pump by running at a lower speed most of the time and only using high speed when needed. Running at 1/2 speed the pump takes 1/4 the electricity and pumps about 1/2 the amount of water per hour - which means that if you pump the same amount of water you use 1/4 the power for 2x as long which means you use about 1/2 the total electricity to get the same water movement.

    Depending on your electrical rates you could save a considerable amount of money.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Scary Noisy Pool Pump (with video)

    It's hard to tell for sure, but it looks like the pump is not moving water. If there is no water flow, and the pump strainer is full, then I would suspect that the impeller has sheared off.

    Is the pump moving water? Check the flow into the skimmers, out of the returns and the filter pressure.

    I think that the motor is probably at the end of its useful life. Your best choice is likely to be a new motor, or pump.

    Also, it looks like the equipment gets very strong sunlight exposure. Providing shade to the motor, without restricting airflow, will help it to run cooler, and last longer.

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    Re: Scary Noisy Pool Pump (with video)

    Yes, it IS moving water. We have a waterfall feature and it's working and the skimmer is pushing water into it and all. I emptied the strainer on Monday.
    I saw a few "pumps" online for around $200 to $300. Should I just buy a new pump or get the pool guy to come over and try and fix this one (or have him change the bearings or put in a new motor)?

    I just don't want to get the runaround from the pool guy and get overcharged for anything. I'd like to kind of know what I'm talking about when he comes over.

    Thank you all for your help.


    Quote Originally Posted by JamesW
    It's hard to tell for sure, but it looks like the pump is not moving water. If there is no water flow, and the pump strainer is full, then I would suspect that the impeller has sheared off.

    Is the pump moving water? Check the flow into the skimmers, out of the returns and the filter pressure.

    I think that the motor is probably at the end of its useful life. Your best choice is likely to be a new motor, or pump.

    Also, it looks like the equipment gets very strong sunlight exposure. Providing shade to the motor, without restricting airflow, will help it to run cooler, and last longer.
    In-ground 18000 gallons salt water pool, sand filter, 4-5 feet deep, kidney shaped small pebble tech pool with water feature.

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    Re: Scary Noisy Pool Pump (with video)

    A lot depends on the specifics of your situation. Such as pool size, pool usage, filter size, water feature requirements, electrical rates etc. If the motor is over five years old, is making a loud noise, is getting too hot, and smells like it's burning, then it is not worth repairing. It's likely that you would do better with a smaller pump, a two speed motor or a two speed new pump.

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    bobodaclown's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    On the motor you should have a number that tells HP (horse power), and one that tells SF (Service Factor). Multiple those numbers together. That is the number that really matters. (pool-school/pool_pump_basics)

    It's usually cheaper to just change out the motor, if there is nothing wrong with the wet end. From your video, it sounds like motor issue only. If your a DIY person it is possible to change out the bearings only. Some places sell rebuilt motors (for example http://phoenix.craigslist.org/nph/for/3308383422.html) (No affiliation I did a quick craigslist check.) Some places you can bring in your motor end and they'll swap out the impeller and install a new seal and you reinstall it.

    A rebuilt motor typically goes for 1/2 the price of a new one. Rebuilds depend on the quality of parts and who does it. Some places also offer a 90 day warranty. Some people don't replace the seal, that's a big no-no. Always replace the pump seal when replacing the motor.

    Hope the info helps.
    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: Scary Noisy Pool Pump (with video)

    Thanks guys. I've called around and found a place that sells the exact same motor as mine for $235 (new), while a pool guy in town can rebuild mine for $250.
    I currently have an A.O Smith - 1.5HP (see attached photo).

    I also found a place where I can get a 2 speed motor for $311 (that will fit my current setup):
    http://www.backyardpoolsuperstore.com/E ... _4367.html

    Is Emerson a decent brand? Are these easy to install?

    Thanks again for everyones help.


    Quote Originally Posted by bobodaclown
    On the motor you should have a number that tells HP (horse power), and one that tells SF (Service Factor). Multiple those numbers together. That is the number that really matters. (pool-school/pool_pump_basics)

    It's usually cheaper to just change out the motor, if there is nothing wrong with the wet end. From your video, it sounds like motor issue only. If your a DIY person it is possible to change out the bearings only. Some places sell rebuilt motors (for example http://phoenix.craigslist.org/nph/for/3308383422.html) (No affiliation I did a quick craigslist check.) Some places you can bring in your motor end and they'll swap out the impeller and install a new seal and you reinstall it.

    A rebuilt motor typically goes for 1/2 the price of a new one. Rebuilds depend on the quality of parts and who does it. Some places also offer a 90 day warranty. Some people don't replace the seal, that's a big no-no. Always replace the pump seal when replacing the motor.

    Hope the info helps.
    Attached Images Attached Images
    In-ground 18000 gallons salt water pool, sand filter, 4-5 feet deep, kidney shaped small pebble tech pool with water feature.

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    Mod Squad Bama Rambler's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    They're pretty easy to install. A 2-speed motor would be a good investment especially for a pool the size of yours.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    bobodaclown's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    That motor you listed would work. You'd need a switch to switch between hi/low speed or a 2 speed timer. Remember when you replace the motor you'll need to purchase a seal and if you go with a 2 speed you'll also need a 2 speed switch or 2 speed timer.
    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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    UnderWaterVanya's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    So the delta between the two motors with timer changes etc might be around $150 or so. How much is your electricity per Kw/h? How many hours a day do you run the pump today? What water features (if any) do you have and do you have solar? Do you use a suction side cleaner?

    With these things in mind you can figure out the payback period...
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Scary Noisy Pool Pump (with video)

    Hi UnderWaterVanya,

    - Our electricity per Kw/h is: $0.1010
    - I run the pool about 6 1/2 hours per day.
    - We have a water feature (not a total waterfall, but close to one).
    - We do not have solar
    - We have an Hayward R2D2 vacuum cleaner suction thingie that plugs into the side of the pool while it cleans the bottom.

    Oh, and I actually found an AO Smith 2 speed pump as well. I heard they are a better brand, so I'll probably get this one:
    http://www.backyardpoolsuperstore.com/A ... _4344.html


    Quote Originally Posted by UnderWaterVanya
    So the delta between the two motors with timer changes etc might be around $150 or so. How much is your electricity per Kw/h? How many hours a day do you run the pump today? What water features (if any) do you have and do you have solar? Do you use a suction side cleaner?

    With these things in mind you can figure out the payback period...
    In-ground 18000 gallons salt water pool, sand filter, 4-5 feet deep, kidney shaped small pebble tech pool with water feature.

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    Re: Scary Noisy Pool Pump (with video)

    Does anyone know if a 56Y Frame would/could fit on a 48Y Frame?
    In-ground 18000 gallons salt water pool, sand filter, 4-5 feet deep, kidney shaped small pebble tech pool with water feature.

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    bobodaclown's Avatar
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    Re: Scary Noisy Pool Pump (with video)

    Depends on if there is a removable spacer on the mount. The 56 is bigger, some of the older models just use a rubber filler piece. You can remove it to fit a larger (56Y frame). You'll have to check. Otherwise no.
    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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