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  1. #1

    Pump , external or submerged

    Hi all I have a nexus 310 which is above pond level and I am wondering , would I better with a external pump . I have a superfish eco 16000 submerged at the minute , which pumps to my uv which is below pond level then on to my nexus which is above water level .
    So if I take the pipe off my uv or off at filter entry , water still comes out of pipe from pond , ( which is normal as all below water level ) so in theory gravity fed up to that point . Then my pump which is like I say is submerged about 25 ft away to push the last bit to get water over into the nexus .
    So now I’m wondering would I be better off putting a external pump on instead at filter entry area to push it over into the filter ????
    Would like to here your thoughts .
    Cheers in advance



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  3. #2
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Hi Dunc, my opinion yes it would be better,what size pipe is it as I think you would need 2ins?
    John

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  5. #3
    Hi john yes 2 inch smooth inside pipe .
    Ive just never had a external pump , in 30 + years of having ponds , I always have had a submerged pump .but just wondered if it would run Better that way . I brought a sequence 15000 when I moved a few years ago and was gonna run that but chose to go against it.




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    Senior Member Rank = Grand Champion andikoi's Avatar
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    pity you can t fit one of these,with the larger pipe would be better for flow,,,,andi Dracodrum Bottom Drain pond filter solution

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  9. #5
    Hmmm somethin to consider , thanks andi Maybe a summer project ... cheers


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  11. #6
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Hi Dunc, The sequence would work I have two 10000 been running for 15yrs and a very good pump,worth a try.
    John

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