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Thread: Jnad`s new DAS scrubber with GAC option

  1. #1

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    Jnad`s new DAS scrubber with GAC option

    Hello!
    I have an new idea for feeding the algaescreen with water flow and air, i have thinking of this for a while and have now run some tests with my prototype unit. The unit is not tested for how it will be growing algae, just for water flow and air hudraulics. The tests is looking very good and i have hope for this design.

    This prototype scrubber is not an UAS, but it is an DAS (downflow algae scrubber) with GAC option, if this works as i hope it could possibly be a good filter as algae scrubber and GAC filtration if wanted. The prototype scrubber is siply hung on the glass of the tank, scrubber unit inside tank and light unit outside the tank.

    My main goal with this new idea is to get rid of the air pump, so of course this prototype do not use any air pump to feed the screen with air

    The prototype is an HOG version, but this way to feed screen with water flow and air can probably be used in on top of tank scrubbers, in sump scrubbers, on top of sump scrubbers and of cause in tank scrubbers.

    I will post some videos of the prototype running later this weekend, but here is some pictures of the unit:

    The scrubber consists of three main parts, on the picture the inside tank unit to the left, and light unit to the right, and spraybar in the middle. As you see the both units uses reflectors to get the most out of the lightning.
    Click image for larger version

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    This picture shows the in tank unit ready mounted with spray bar, filter pads and you can see the small powerhead that is used for the test:
    Click image for larger version

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    On this picture you can see the inside unit running, no screen is placed inside the unit, this test is just for looking at water flow and air:
    Click image for larger version

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    Hope this idea works, and that you like it.

    Jnad
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  2. #2
    kerry's Avatar
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    I can not view the pics!!
    150G. Reef/Mix
    125G. 3 Regular Oscars/1 Jack Dempsey
    75G. 20+ Africans
    40G. Fish/Reef. Algae Scrubbers on ALL my SW
    10G. SW Fish/Reef.
    10G. SW Hospital/new fish quarantine/pod breeder tank
    6 stage RO/DI system 200 GPD.

  3. #3

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    Cannot view pics either. Please repost as this sounds very interesting.

  4. #4

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    Pictures should be fixed now

  5. #5
    kotlec's Avatar
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    I see pics , but do not understand how it works completely

  6. #6

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    using pump to push water downward as if it was GAC but you plan to light direct one side for algae scrubbin'???

  7. #7

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    Hello!

    Here is an quick video i made just no in a hurry trying to explain how the scrubber works, damm i am good in English A couple of bears

    http://www.youtube.com/watch?v=TtGcz...&feature=g-upl

    Video when scrubber running in tank posting tomorrow.

    jnad

  8. #8
    kerry's Avatar
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    I see, very nice Sir. I wonder if the part in the tank would be better upside down?? This way the flow would be the same. I think at the top the flow will fight against the air. This may however cause great turbulence and be a benefit. Test will let you know.
    150G. Reef/Mix
    125G. 3 Regular Oscars/1 Jack Dempsey
    75G. 20+ Africans
    40G. Fish/Reef. Algae Scrubbers on ALL my SW
    10G. SW Fish/Reef.
    10G. SW Hospital/new fish quarantine/pod breeder tank
    6 stage RO/DI system 200 GPD.

  9. #9

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    Thanks Kerry!

    The spraybar has to bee on the top or it will not make any bubbles. This way it makes bubbles with no airpump and with no venturi/ejector. Looking forward to test this with a screen.

    Jnad
    Quote Originally Posted by kerry View Post
    I see, very nice Sir. I wonder if the part in the tank would be better upside down?? This way the flow would be the same. I think at the top the flow will fight against the air. This may however cause great turbulence and be a benefit. Test will let you know.

  10. #10

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    Hello!

    Here is an video of my DAS (downflow algae scrubber) running inside the tank.

    The scrubber using no air pump or venturi, just standard small powerhead.

    I dont now if this scrubber will be growing algae, but i dont se why it not should grow, it has light, flow and air. If it grows algae the pos with this design i think is:

    - Silent running
    - Very god flow
    - No clogging of air stone, the spraybar is located over the waterline.
    - Posibility to use GAC if wanted
    - Very easy to clean screen or scrubber box when needed.

    This is just an prototype, but if it works good i will continue to work with this design beacuse i am specially interested in these inside tank scrubbers. It would be great to be able to run a saltwater tank just as easy as freshwater when it comes to filtration.

    Video:
    http://youtube.com/watch?v=7e3Xqa5oJK0

    Jnad

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