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  1. #1
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Pump Maintenance

    i noticed that the wattage @ 50% power was steadily creeping up on my aquaforte vario 20,000
    from 54w when i fitted on the new pond last year, to 61w yesterday, i also noticed the pump housing felt quite warm.

    so i took the pump out to clean it, and found the impellor and housing area was coated in a mulm/film which is obviouly restricting water from getting in to cool the area.
    since cleaning the pump it doesn't feel warm to the touch like it did before, and the wattage has dropped back to 54w.

    the 6w of power is neither here nor there,
    but it seems a good indicator for when the pump needs cleaning to prevent it from over heating and burning out....

    my 30,000 vario was moved to a different position and cleaned earlier this year, so doesn't need cleaning yet,
    but i'll be keeping an eye on the wattage for a given power percentage....


    Last edited by davethefish1; 25-09-2022 at 07:54 PM.

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  3. #2
    Member Rank = Nisai Paddy's Avatar
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    Very good tip, just been down to the pond and took a photo of my readings,

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  5. #3
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Quote Originally Posted by Paddy View Post
    Very good tip, just been down to the pond and took a photo of my readings,
    just thought it might save anyone having to replace a pump that just needed cleaning.

    i know someone who replaced an aqua forte vario 20,000 that burnt out, with a ea varipump.
    but he hadn't cleaned it once in the 3 years it was running....

    modern energy efficient pumps have much tighter gaps in the stator to the impellor to save energy.
    making them more prone to blockage and over heating.
    Last edited by davethefish1; 25-09-2022 at 08:26 PM.

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  7. #4
    Senior Member Rank = Grand Champion samp09's Avatar
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    What did you clean the film with Dave? I will do this on my 20k next time I do a water change

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  9. #5
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Just been and checked mine was 82 now 90

    Sent from my SM-G973F using Tapatalk
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  11. #6
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Quote Originally Posted by samp09 View Post
    What did you clean the film with Dave? I will do this on my 20k next time I do a water change
    i just washed it out with an aquarium bottle brush and pond water, it was very easy to remove.
    but check for any signs of limescale too,
    as if it is run hard and does get hot it can scale up and the impellor can jam causing the pump to fail.

    if there is any lime scale use white vinegar or citric acid to remove it as it is food grade and non toxic

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  13. #7
    Senior Member Rank = Grand Champion davethefish1's Avatar
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    Quote Originally Posted by Ajm View Post
    Just been and checked mine was 82 now 90

    Sent from my SM-G973F using Tapatalk
    might be worth a clean mate
    doesn't hurt and might save the cost of a pump
    just be careful with the O ring.

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  15. #8
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Job for tomorrow I think . Hoping I can get in without to much bother as it all got boxed in in a rush and I didn't leave Any access for the pump

    Sent from my SM-G973F using Tapatalk
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  17. #9
    Senior Member Rank = Grand Champion samp09's Avatar
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    Quote Originally Posted by Ajm View Post
    Job for tomorrow I think . Hoping I can get in without to much bother as it all got boxed in in a rush and I didn't leave Any access for the pump
    I did clean it before I sent it to you as well!

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  19. #10
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    19654
    A know mate was spotless when I got it . I never cleaned it after running it on the multibay or sieve where a fair bit of crap was getting though so could be canny minging tbf . Need to pull my finger out and get the airlift built really save all the problems

    Sent from my SM-G973F using Tapatalk
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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