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  1. #1
    Senior Member Rank = Gosai rolo's Avatar
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    retrofit bottom drain

    hi
    considering fitting a retrofit bottom drain with aeration. would like to connect EA 10000 vari pump.
    Who's using what make and the pro's and cons please.

    Regards
    keith



  2. #2
    Senior Member Rank = Gosai rolo's Avatar
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    I take it no one has anything to say good or bad about retrofit aerated bottom drains.
    looks like spending a few hours reading up about the pros and cons.

    keith

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    Senior Member Rank = Grand Champion samp09's Avatar
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    Sorry Rolo, I don't know anything about them myself so can't advise

  4. #4
    Senior Member Rank = Gosai rolo's Avatar
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    thanks for reply i shall do some reading up and have a wonder around youtube so far eco filtration seems the front runner.

    keith

  5. #5
    Extreme Koi Member Rank = Sansai StevePeps's Avatar
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    Hi Keith
    if you do find out let me know please , I bought one 2 years ago and canít get it going with my Aquammax 8000 . Iíve just bought a EA20000 vari pump so hopefully better luck with this .
    steve

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    Senior Member Rank = Gosai rolo's Avatar
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    hi steve when you say cant get it to work do you mean its not pulling muck up into the filters etc.
    what retro bottom drain did you buy. looking at youtube and reading up about the Eco filtration aerated bottom drain this afternoon it recommends 60/80 L/min.
    Im looking to pull from pond to a stand alone sieve onto a homemade barrel filter then pumped into easypod auto then back to pond.

    keith

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  8. #7
    Senior Member Rank = Gosai rolo's Avatar
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    steve im sure you've will have tried everything,
    but got me thinking where was your pump situated with regards to bottom drain.if it was dry mounted it would need priming as there would be an air lock in the pipe from pump to aerated drain. nothing like stating the obvious .

    my thoughts so far are to connect drain to pump with a short length of pipe not using jubilee clips dont want koi rubbing against clips.

    Let us know how you go on ive got an hour spare in the morning so will have gander at youtube.

    Keith

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  10. #8
    Extreme Koi Member Rank = Sansai StevePeps's Avatar
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    Hi Rolo
    i can’t seem to get pressure from the bottom drain through the pump .
    pump is on pond floor about 2-3 feet away , or it was , I’ve taken bottom drain out .

    I’ll have look on YouTube and how to set up with EA20000 as not tried yet .

    steve

  11. #9
    Senior Member Rank = Gosai rolo's Avatar
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    hi steve
    that's a mystery apart from L/pm for air pump can't find any mention of what size pump to use.
    Before spending just short of £100 on a retro fit bottom drain first thing im going to try is to drop a big flat air stone right next to the submerged pump and see if the sieve is collecting more crud. £8 for a new length of air pipe as opposed to £100 ( tight yorkshireman).
    I'll let you know the result.
    keith

  12. #10
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Only just seen this thread.

    I fitted a retro BD on mine last year or could have been the year before?

    I used pressure pipe from the retro BD to an EA 20,000 lph variable speed pump then pump up to a uvc, pump fed sieve, Eazy Pod and then back to the pond. Earlier this year I added a bio chamber after the Eazy Pod and it all seems to work OK apart from when the blanket weed takes over and keeps blocking the retro BD. I then have to pull the pipework, pump and retro BD out of the pond, remove the blanket weed and put it all back again. Not sure if I would bother with replacing it if it ever broke as I think the original pump I had with a screw on cage was much better at dealing with blanket weed as it would chop it up into tiny bits rather than have long strands of the stuff being drawn into the BD and then the pipework leading to the pump before it can then be chopped up.

    If I regularly use a strong dose of Aquasource Resolve it helps a fair amount.

    If I had a big enough veggie filter to remove the Nitrate and Phosphate etc to stop the blanket weed taking over then maybe I'd get another one?
    ________________________________________________
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    Get up, eat jelly, sandwich bars and barbed wire,
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  13. #11
    Iíve been using one for maybe 12 months ish on an aquamax 8000,it was delivering flow to filter but wasnít clearing bottom so I changed to a 20000 vario pump hoping I could max my flow to filter and in turn get a better draw from the drain but Iíve had nothing but problems- the flow was terrible even on max setting of 10 which should be 19000lph there just wasnít enough flow and after a few days it would slow or stop completely Iím guessing an airlock issue,Iíve now gone back to pump cage and my flow at the filter is increased so much that setting number 1 is adequate so was deffo an issue somewhere with the drain
    I had it setup as above with the pump in the pond maybe a meter away from the drain hardpiped all
    the way to filter via 40mm/1.5Ē pipe

  14. #12
    Quote Originally Posted by Frimley Koi keeper View Post
    Only just seen this thread.

    I fitted a retro BD on mine last year or could have been the year before?

    I used pressure pipe from the retro BD to an EA 20,000 lph variable speed pump then pump up to a uvc, pump fed sieve, Eazy Pod and then back to the pond
    Have you any pics of this setup mate please? Iím thinking of adding a sieve before a nexus on a pump fed system

  15. #13
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Quote Originally Posted by dan87 View Post
    Have you any pics of this setup mate please? I’m thinking of adding a sieve before a nexus on a pump fed system
    Not sure but will have a look later
    ________________________________________________
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  16. #14
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Not sure if these are what you are after or even if the photos will show up!!!!
    Attached Images Attached Images
    ________________________________________________
    All we ever wanted was everything,
    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

 

 

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