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  1. #1

    Bead filter to polish water

    Hi,

    I have a pond it is about 8500 gallons, with two bottom drains and two skimmers all these feed into a large combi drum filter. I have 3 returns to the pond all through the drum, one goes to the moving bed, one to a bakki shower and one is just returned to the pond.

    The water quality is good but I want it to be crystal clear and itís not quite there. I plan to use a large bead filter filled with k1 media to really polish the water. My question is which return should I use it on, I could put it before the bakki shower , after the moving bed or on the return with no filter although I may add a ASHP to this return.

    what are peopleís thoughts?

    thanks
    Pete



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  3. #2
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Do you have a skimmer line?

    I'm in process of installing a bead on skimmer line which will then feed a shower. In my situation that seems the best option to add a little polish to the water, but your set up may differ.

    Sent from my Pixel 6a using Tapatalk

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  5. #3
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Not too familiar with bead filters but could it be put in your straight
    return to pond so the return can have some purpose.
    John

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  7. #4
    Extreme Koi Member Rank = Gosai Andymadd's Avatar
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    If you are only after polishing filter Advantage used to sell a "Glass filter" it was basically a sand filter with a ground glass media. This was plumbed in after your main bead filter, then back to pond.

    The only thing you had to do was PP the whole thing every few weeks so no bio film glued it all together.

    I was tempted but decided too much faff

    Andy

  8. #5
    Not sure if money is an option (given the cost of electricity now) but bead and sand filters need powerful pumps to run them effectively. The type of filters needed are expensive to run in comparison to a Ďregularí gravity system alone.

  9. #6
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by PeteW123 View Post
    Hi,

    I have a pond it is about 8500 gallons, with two bottom drains and two skimmers all these feed into a large combi drum filter. I have 3 returns to the pond all through the drum, one goes to the moving bed, one to a bakki shower and one is just returned to the pond.

    The water quality is good but I want it to be crystal clear and it’s not quite there. I plan to use a large bead filter filled with k1 media to really polish the water. My question is which return should I use it on, I could put it before the bakki shower , after the moving bed or on the return with no filter although I may add a ASHP to this return.

    what are people’s thoughts?

    thanks
    Pete
    how clear is your water?
    i've only ever had a drum on my current pond for mechanical filtration,
    and the only stuff i see floating around in the water is bits of algae the fish are constantly grazing from the sides.
    that are at least 100 times bigger than the 120 micron mesh of my drum screen....

    the level of clarity on my pond has more to do with pump turnover, and how quickly the crap floating around in the pond water can get filtered out by the drum...
    currently i'm turning over the whole pond volume (11500 litres) about twice an hour at about 22,000lph.
    Last edited by davethefish1; 07-04-2023 at 10:15 AM.

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