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Thread: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

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    Pysiek's Avatar
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    INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    After I changed my plumping to PVC the pump start to make a lot of noise. Also water in the pump skimmer never fill to the top of it. Pressure is OK and the flow got weaker a little bit.
    Is there an air leak somewhere ? Or maybe bad bearings?
    Here is a video of how it sound like:
    http://youtu.be/WJg6Q_uEcbc
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    How mechanically inclined are you?

    The noise sounds suspiciously like bearings failing. You will have to disassemble the pump from the motor to fix this, if you can find the correct bearings. Shouldn't be too hard, as you probably have a couple of bearing distributors near you.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    To take it apart it's not a problem for me. So do you suspect it might be the bearings?
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Yes, especially as you have already eliminated the impeller being fouled, having opened the wet end.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Pysiek's Avatar
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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Oh Charlie this is not my video
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Does it move water fine to start with and the develop air in the pump basket? I would eliminate the suction side leak first. Then see how yours sounds. Have you lubed (with silicone or teflon lube) the pump cover oring?
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Quote Originally Posted by linen
    Does it move water fine to start with and the develop air in the pump basket? I would eliminate the suction side leak first. Then see how yours sounds. Have you lubed (with silicone or teflon lube) the pump cover oring?
    No I have never lubed the oring since I purchased the pump in May last year
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    These pumps tend to make a lot of noise when stressed.

    When we replace the Intex flexible tubes for hard plumping that looks way neater, then we can unintentionally introduce a lot of sharp bends, depending on hard plumping design, and this will stress the pump more than the unsightly OEM tubes did.

    Some higher quality pumps can take that strain without any audible complains, but from my experience I can definitely state that Intex pumps can not.
    Donīt be fooled by the sheep on my bike, I swim with fish in my sound equipped pool.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Quote Originally Posted by asxetos
    These pumps tend to make a lot of noise when stressed.

    When we replace the Intex flexible tubes for hard plumping that looks way neater, then we can unintentionally introduce a lot of sharp bends, depending on hard plumping design, and this will stress the pump more than the unsightly OEM tubes did.

    Some higher quality pumps can take that strain without any audible complains, but from my experience I can definitely state that Intex pumps can not.
    You might be right. Now I have more 90 deg turns
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Okay. It took me a while but finally I found some time to check my pump.
    First thing after I remove plastic cover that covers the motor. Why there is no seal?



    Next I found that the impeller wheel (that's how you call it I believe) was clogged with straws of grass



    This is how much I pulled out



    After I cleaned everything and put all the parts together I connect the pump back to the filter . Turn it on and still same noise
    Then I decided to take it apart completely to replace the bearings.
    Check the photos of what I've found out. Rusted bearing


    I expected Intex to make better product but it looks like they do not want the bearings to last long time.

    I have ordered the bearings and they will arrive tomorrow.
    Already removed the old bearings.
    Will keep you updated.
    Also short note on the bearings. They are 608Z bearings which are most of the time used in rollerskating or skateboarding. I called local skate shop stores but they do not have them in stock. I ordered mines from McMaster-Carr cause they delivered cheap next day: http://www.mcmaster.com/#6661k12/=o15eph
    But I found cheaper ones here: http://www.vxb.com/page/bearings/PROD/sk8zz. I used to order from these guys before but now I need these ASAP so I decided to go with McMasterr-Carr
    One more thing. All you guys who will like to replace their bearings too use my advice and use cordless drill to remove 3 long screws that hold the two bearing housings together. Screws head is very easy to get damaged and you won't be able to remove them.
    What I did is I set up the cordless drill clutch at 10 and press really hard against the screw. Drill acted as it was a impact drill which remove the screws slowly and without damaging the head.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    The two that I have disassembled have a seal where the shaft exits the pump. It could be that this was forgotten at the factory on yours.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    It did have a seal. Two of them to be specific. One were mounted on the spring. Do you know if there are pictures of the disassembly somewhere? I forgot to take some while I was disassembling the motor.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    I have done a LOT of internet searching for pics and diagrams of the internals of these pumps. Intex and their manufacturers don't seem to want that info out there. The skate bearing thing may be part of that, as knowledge of the relatively low cost components would probably reduce sales by a large margin. We aren't supposed to repair these things, as the price point is supposed to be low enough to just replace when things go south.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    After seeing this I am glad I went with my old sand filter and a new 3/4 hp pump.

    Looks like those Intex Pumps on the 1600 are not made that well. That bearing looks horrible for the short time you have used it. My old Hayward pump lasted years out in the weather even without a cover, it looks like a shaft seal was leaking on that pump allowing the bearing to get wet.
    -----------------------------------------------------------
    2017-Intex Ultra Frame 16x48 5000 Gallons
    Intex 2800GPH Pump with 14" Intex Sand Filter
    My Intex Pool Setup Video :Intex pool rises from the ashes - installing and leveling - EP-72 - YouTube

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    I will sell my pool next year so I just want to fix it for now. But I learned my lesson not to get intex sand filters no more.
    One more thing I would like to let you know. I keep the filter and pump in my shed over the winter. So it wasn't sitting outside all year long.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    All you guys who will like to replace their bearings too use my advice and use cordless drill to remove 3 long screws that hold the two bearing housings together. Screws head is very easy to get damaged and you won't be able to remove them.
    X10. I used an 18V impact driver with very light trigger pull for slow hammer.

    I just posted about this fix but w/out pics. Thanks for the pics. I actually found a bearing from Fastenal that had a rubber outer seal. My shaft wasn't rusted like yours- I had cage failure. Only one bearing was bad, but the armature had some scarring and the noise was very loud. I replaced both for just over $2. At that price I will be tearing down prior to next year and likely replacing again. These bearings are cheap and very light duty.
    I found a heavier duty bearing thru Grainger but the delivery was a week and I had been down 5 days already. Fastanal was driving distance so I went with them. Grainger bearing: http://www.grainger.com/Grainger/DAY...FF5?Pid=search
    I may order these to have on standby.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Quote Originally Posted by jerallen
    All you guys who will like to replace their bearings too use my advice and use cordless drill to remove 3 long screws that hold the two bearing housings together. Screws head is very easy to get damaged and you won't be able to remove them.
    X10. I used an 18V impact driver with very light trigger pull for slow hammer.

    I just posted about this fix but w/out pics. Thanks for the pics. I actually found a bearing from Fastenal that had a rubber outer seal. My shaft wasn't rusted like yours- I had cage failure. Only one bearing was bad, but the armature had some scarring and the noise was very loud. I replaced both for just over $2. At that price I will be tearing down prior to next year and likely replacing again. These bearings are cheap and very light duty.
    I found a heavier duty bearing thru Grainger but the delivery was a week and I had been down 5 days already. Fastanal was driving distance so I went with them. Grainger bearing: http://www.grainger.com/Grainger/DAY...FF5?Pid=search
    I may order these to have on standby.
    I choose those bearings because the ones with plastic shield are only 22,000 RPM and the ones with steel shield are rated at 48,000 RPM. Since I have no idea how many RPM the intex motor have then I jest went with 48,000. I might go to high but it's better then go to low
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Okay. Bearings installed. What a difference!!! Now I have to put my ear against the motor to make sure it's on.
    Here is a video of the pump running with new bearings: http://youtu.be/v9SrfEsm_bQ
    Also the pump works more quiet when it is connected to pool.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    Good job!

    With the use of higher quality bearings and seals, that should last you a good long time.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: INTEX 14" Krystal Klear Sand Filter Pump Make Noise

    I will make a short tutorial on how to put it all back together. Took some pictures while working on it.
    30'x54" Quest Above Ground Round Pool , About 21,000 Gallons , Hayward Perflex EC50 D.E. Filter System 1.5HP Power-Flo Pump , TF-100 Test Kit , Two Hayward Main Drains on the Bottom , Hayward CL200 In-Line Above-Ground Chlorinator.
    77"x77"x21.5" Hot Tub

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