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Thread: nexus 310 leak

  1. #1

    nexus 310 leak

    Hi this is my first post and i cannot find any answer to my question not even from the makers of the filter. My problem is that my nexus 310 has sprung a leak from underneath the main body. I have asked my local koi outlet and have been informed that it could be the rubber connection from the drainage pipework.but no one can tell me the size of the connection. It is not listed as a "spare" on the website, I have spoken with a rep from evolution aqua but he could not tell me. So i have to empty the filter to find out but then i have to find where to purchase a new connection and as this could take a while i do not want to leave my pond without filtration. Does anyone know the size of this rubber connection and where i could get one ???



  2. #2
    Extreme Koi Member Rank = Nanasai blue harbour's Avatar
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    Think the pipe for the drain assy is 1.5” pressure pipe if I remember (and if it’s the same size as my 220)

    Do you know where your local koi specialist is!?, they might well have the parts you need if it’s just a fairly standard rubber boot (can’t remember how the drain tube connects to the filter body)


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    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Have a look at DaveVR6 build thread.... He has just carried out this exact same repair on a 220.

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  6. #4
    It will be the rubber connector that connects the waste pipe to the Nexus, it will be 1 1/2 but it’s not the normal ea 45 degree rubber, it’s a shorter elbow from memory. Wouldn’t know if you can get away with the standard one though.

  7. #5
    Quote Originally Posted by blue harbour View Post
    Think the pipe for the drain assy is 1.5” pressure pipe if I remember (and if it’s the same size as my 220)

    Do you know where your local koi specialist is!?, they might well have the parts you need if it’s just a fairly standard rubber boot (can’t remember how the drain tube connects to the filter body)


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    thanks but my local dealer does not stock it

  8. #6
    thanks I will have to strip out the filter and hope for the best

  9. #7
    Extreme Koi Member Rank = Hassai davec's Avatar
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    If it’s the same fitting as a 200 model it’s a rubber reducer then a normal pressure bend I1 1/2 inch I have one of the boots somewhere in garage it fits over the hole on bottom clamps up then the bend and pipe in other end it’s in garage il see if I can find it


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  11. #8
    Extreme Koi Member Rank = Hassai davec's Avatar
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    Is it like this think it’s 80 mm to 50 mm something like that it used to fit over waste outlet under my 200 and bend fits directly into other endIMG_0275.jpg


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  13. #9
    Did anyone found out the size please? My 200 has just started leaking from underneath, is there anything on EA website?

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    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by raytom73 View Post
    Did anyone found out the size please? My 200 has just started leaking from underneath, is there anything on EA website?
    Where is it leaking drain pipe inlet from bottom drain or pump fed.
    Or outlet return
    Or drain pipe.

    I have a nexus 320. And my inlet is 4 inch
    Straight coupler rubber boot

    On my outlet return to pond. It's a 3 inch
    To 2 inch rubber boot reducer.

    Drainage is fixed pipe work
    Ist photo inlet
    2nd photo outlet
    3rd photo drainage
    4th photo drainage
    Hope this helps
    fred

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  16. #11
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Heres a link for waste pipe
    https://www.pond-planet.co.uk/pond-c...oaAv-YEALw_wcB

    Fred

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  17. #12
    Thanks Fred it’s gravity fed and it’s leaking from underneath I can see the clear water running and my pond is dropping 4 inches overnight really need a replacement first before I look at it underneath and replace because my pond is heated so need to keep it running

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  19. #13
    Extreme Koi Member Rank = Hassai davec's Avatar
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    nexus 310 leak

    If it’s underneath it will be from the waste boot like I said you could give you this boot tightens onto base and an inch and a half bend into other end which is already glued up into waste pipe that drains when you clean if it ain’t that it’s got an hole in somewhere


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  20. #14
    Extreme Koi Member Rank = Hassai davec's Avatar
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    IMG_0469.jpg


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  21. #15
    Thanks Dave what size is the boot?

  22. #16
    Senior Member Rank = Hassai big h's Avatar
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    If its underneath it wont have boots on.It will be leaking from the rubber seal that fits onto the bottom of the Nexus.Its like a tank connector.I did my mums and had to strip it out and turn upside down .Good thing is a nexus is quick to remove and theres little biological action now so no worries for the fish

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  24. #17
    Senior Member Rank = Hassai big h's Avatar
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    The fitting Dave has pictured is what we call a clay to plastic adaptor,about £8 from a builders merchant
    Last edited by big h; 15-12-2019 at 03:27 PM.

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  26. #18
    Extreme Koi Member Rank = Hassai davec's Avatar
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    It’s 85- 90 mm large side 59-64mm smaller diameter side on the nexus 200 I had on the waste outlet from centre chamber this size boot fit over a fitting on drain and the bend with pipe and valve fit directly into the other end it could of all change since I did mine years ago but if it is any good to you you can have it no problem if you can see under the nexus have a look see if it will be any good to you it was a boot I got from ea yonks ago I


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