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  1. #1
    Member Rank = Nisai MARKG71's Avatar
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    Air and air pumps

    Hi all,
    This being my first pond in my wisdom I opted for a standard bottom drain rather than an aerated one.
    Considering an air disk on the bottom of my pond but not sure what quantity of air is required.
    I have a 100 litre/minute air pump running a Nexus 220, as the 220 doesnít need that much air could I tap off the air line to feed the air disk or do I need a second air pump ?



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  3. #2
    Quote Originally Posted by MARKG71 View Post
    Hi all,
    This being my first pond in my wisdom I opted for a standard bottom drain rather than an aerated one.
    Considering an air disk on the bottom of my pond but not sure what quantity of air is required.
    I have a 100 litre/minute air pump running a Nexus 220, as the 220 doesnít need that much air could I tap off the air line to feed the air disk or do I need a second air pump ?
    Depending how deep the pond is.
    But i have just bought a 100 lt air pump. And i reackon if my other air pump packed in and i teed off. With a manifold it would do my air dome
    Bottom drain and nexus.
    It suprised me how powerfull the pump was. As i have always had larger pumps. So yes if you have a good pump


    Sent from my SM-G925F using Tapatalk

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  5. #3
    Forgot to add my pond is 6 feet deep

    Sent from my SM-G925F using Tapatalk

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  7. #4
    Member Rank = Nisai MARKG71's Avatar
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    Thanks Freddyboy, my pump is a Charles Austin ET100 and my pond is almost 5ft at the deepest so looks promising.
    i will try a manifold and air disk.

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  9. #5
    Extreme Koi Member Rank = Grand Champion john1's Avatar
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    Think you could Mark,if you valved each supply but kept one fully open to avoid back pressure.
    It would be a matter of getting the balance right.
    John

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  11. #6
    Senior Member Rank = Grand Champion andikoi's Avatar
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    hate to admit this but the metal evolution aqua valves like on the nexus are great for distributing air,as for the disk,on my old pond i did same,standard bd but then replaced the dome for an spindrifter aerated one,its just fastened on to standard stem with a 1 1/2" rubber connector,worked so well i used the dome on new pond on another standard bd aswel as a proper spindrifter for my other bd,,,,,,andi

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  13. #7
    Quote Originally Posted by MARKG71 View Post
    Hi all,
    This being my first pond in my wisdom I opted for a standard bottom drain rather than an aerated one.
    Considering an air disk on the bottom of my pond but not sure what quantity of air is required.
    I have a 100 litre/minute air pump running a Nexus 220, as the 220 doesnít need that much air could I tap off the air line to feed the air disk or do I need a second air pump ?
    I have a 220 and spindrifter BD. I have a Secoh JDK 80 on the Nexus and used to use a manifold to try and power the bottom drain from that pump too, but it ended up being too much faffing around trying to get the right balance. A tiny adjustment on the valve results in a boiling pond etc. So last year I bought one of the Jebao 35lpm (similar to https://www.ebay.co.uk/itm/182305812288) to power my spindrifter and it's perfect - pumps just the right amount of air with no valves or whatnot. My pond is just over 5ft deep.

    Not sure I'd worry too much about 'retro-fitting' an air disc over the bottom drain - it would be just as effective to drop a ceramic disc or two in the corners, you can move them about to find the optimal location and easier to clean too!

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  15. #8
    Member Rank = Nisai MARKG71's Avatar
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    Thanks John, we’re getting close now, will let you know when I have fish (hopefully late July) and you will have to call up and have a peek.

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  17. #9
    Member Rank = Nisai MARKG71's Avatar
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    Thank you all for the advise, ordered some extra air line, valves and air disk to drop in somewhere.

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  19. #10
    Good luck with it mate. Lots of photo s

    Sent from my SM-G925F using Tapatalk

 

 

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