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  1. #1
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Upgrading to drum

    Hi all

    After almost 3 years of great water parameters with my multi bay on BD and Eazypod on skimmer line I have the green light to upgrade to a drum.

    The time spent cleaning the filters has become rather tedious. YES I know when I first built my pond I was adamant I didnít need a drum but the reality is I do lol!

    My pond is 4000 gallons. I have my eye on the Queni Koi 25 and will have a separate bio chamber.

    I have a variflow 20000 already for my BD - question is to you guys can I run my skimmer and BD from the drum using this pump?

    Looking forward to the lower maintenance and better water clarity.

    Thanks

    Dom


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  3. #2
    Extreme Koi Member Rank = Jussai NickK-UK's Avatar
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    What diameter are the pipes?

    I will have both skimmer & BD into the drum. Both run equal 110mm pipe.
    1700 litres on 50 watts
    Eco Pond 2.0: 13,000 litres, 58W airlifts, 1300l anoxic, Solum 16. No pump.

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  5. #3
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by NickK-UK View Post
    What diameter are the pipes?

    I will have both skimmer & BD into the drum. Both run equal 110mm pipe.
    Yeah will have the skimmer and BD both on 110mm


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  6. #4
    Extreme Koi Member Rank = Jussai NickK-UK's Avatar
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    Quote Originally Posted by Dom G20 View Post
    Yeah will have the skimmer and BD both on 110mm
    As long as the two pipe lengths are about equal resistance you will get equal draw through both into the drum (gravity fed).

    Rough maximums are about 15-18,000lph for a 4"/110mm pipe. So you will have about 30-36,000lph max. So really it will be the rate through the drum that sets the total rate, then 1/2 for the BD and skimmer. As the skimmer internal strainer/basket blocks that will simply reduce the skimmer component and more will be drawn through the BD.

    It's worth having a 4" ball valve purge valve to waste for the bottom drain.
    1700 litres on 50 watts
    Eco Pond 2.0: 13,000 litres, 58W airlifts, 1300l anoxic, Solum 16. No pump.

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  8. #5
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    As said above will work fine Dom, mine is a bottom drain and skimmer both 4ins pipe to Solum 25 drum and the skimmer works very well.
    John

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  10. #6
    Senior Member Rank = Gosai Jampot's Avatar
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    Party pooper here:-(

    A 25 probably isn't big enough and will drive you mad by constantly cleaning the mesh unless the pond is very lightly stocked.

    I stand to be corrected by others who run successfully with high ratios of pond to drum sizes and hope that may be the case.

    Jim
    I don't keep fish, I keep water. I don't keep fish, I keep water. I don't keep fish I kee........

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  12. #7
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by NickK-UK View Post
    As long as the two pipe lengths are about equal resistance you will get equal draw through both into the drum (gravity fed).

    Rough maximums are about 15-18,000lph for a 4"/110mm pipe. So you will have about 30-36,000lph max. So really it will be the rate through the drum that sets the total rate, then 1/2 for the BD and skimmer. As the skimmer internal strainer/basket blocks that will simply reduce the skimmer component and more will be drawn through the BD.

    It's worth having a 4" ball valve purge valve to waste for the bottom drain.
    Thank you Nick really helpful!


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  13. #8
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by john1 View Post
    As said above will work fine Dom, mine is a bottom drain and skimmer both 4ins pipe to Solum 25 drum and the skimmer works very well.
    Great thank you John looks like the multi bay and easy pod will be coming out together


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  15. #9
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by Jampot View Post
    Party pooper here:-(

    A 25 probably isn't big enough and will drive you mad by constantly cleaning the mesh unless the pond is very lightly stocked.

    I stand to be corrected by others who run successfully with high ratios of pond to drum sizes and hope that may be the case.

    Jim
    Hi Jam

    I did have my suspicions and therefore will be saving extra hard for the QK 35 - think this will be more realistic as donít want to be restricted in my koi purchases


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  17. #10
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Hi Dom,as you have 4000 gals think a 35 would be best plan for you.
    John

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  19. #11
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by john1 View Post
    Hi Dom,as you have 4000 gals think a 35 would be best plan for you.
    Thank you John and thank you all for the guidance once again!

    Taking a trip to Queni today to view the QK 35 and talk business.


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  21. #12
    Senior Member Rank = Yonsai Dom G20's Avatar
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    50% deposit down on the QK35 they are just waiting on delivery of the stock from the retailer. So should be with me in the next few weeks - maximum 6-8 weeks.

    Some planning to do to prepare for the upgrade next year.

    Thank you all for the guidance feels better to be overstated with the drum rather than pushing a QK25 beyond its limits.


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    Senior Member Rank = Grand Champion davethefish1's Avatar
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    i'd agree with a QK35 for 4000 gallon....
    i'm just setting up a QK25 for 2000 gallon and figure this is at the limit.
    could even be a future upgrade...

    but considering there's only £300 between a QK35 £2635 and QK50 £2935 i know what i would have wanted....
    unless you're restricted on space, you could always chop in a 4" side feed or 2 to up turnover
    Last edited by davethefish1; 09-08-2021 at 04:53 PM.

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  25. #14
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Good choice I think Dom so happy days and good planning.
    John

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  27. #15
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by davethefish1 View Post
    i'd agree with a QK35 for 4000 gallon....
    i'm just setting up a QK25 for 2000 gallon and figure this is at the limit.
    could even be a future upgrade...

    but considering there's only £300 between a QK35 £2635 and QK50 £2695 i know what i would have wanted....
    unless you're restricted on space, you could always chop in a 4" side feed or 2 to up turnover
    Yeah pretty restricted in my filter pit as the pond is below ground so the QK35 was perfect


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  28. #16
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by john1 View Post
    Good choice I think Dom so happy days and good planning.
    Thank you John!!


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  29. #17
    Extreme Koi Member Rank = Jussai NickK-UK's Avatar
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    Quote Originally Posted by Dom G20 View Post
    Yeah pretty restricted in my filter pit as the pond is below ground so the QK35 was perfect


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    Just a quick Q.

    If you have a filter pit, that originally held both the mechanical and bio filtration. With a drum only providing mechanical, what is providing the biological filtration?
    1700 litres on 50 watts
    Eco Pond 2.0: 13,000 litres, 58W airlifts, 1300l anoxic, Solum 16. No pump.

  30. #18
    Moderator Rank = Supreme Champion Feline's Avatar
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    Agree with those saying get the 35. The size of your pump will be fine for one BD and skimmer. One of my pumps is a 20k and my filters will actually run with just that one pump in use with 2 BDs and gravity fed skimmer.

    You will be so glad you did when you get a drum. Life changing experience

  31. #19
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by NickK-UK View Post
    Just a quick Q.

    If you have a filter pit, that originally held both the mechanical and bio filtration. With a drum only providing mechanical, what is providing the biological filtration?
    Iíll be getting a bio chamber and a shower - the bio chamber will fit in the pit with the drum.


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  32. #20
    Senior Member Rank = Yonsai Dom G20's Avatar
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    Quote Originally Posted by Feline View Post
    Agree with those saying get the 35. The size of your pump will be fine for one BD and skimmer. One of my pumps is a 20k and my filters will actually run with just that one pump in use with 2 BDs and gravity fed skimmer.

    You will be so glad you did when you get a drum. Life changing experience
    Great thank you - yeah very much looking forward to the benefits of the drum!


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