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  1. #1
    Senior Member BIGGUNSAR's Avatar
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    My project this weekend. Building a 4 foot high coil denitrator

    The past project I build a DSB (deep sand bed) denitrator. And guess what....it worked.
    BUT....it didn't work all that well. In a tank lightly stocked, it would do well.

    Well in comes the mother of all denitrators. The 4 foot gargantuan coil denitrator. Made by yours truly.

    Will have 6 inch wide PVC pipe, at 4 feet in lenght. 45 feet of airline tubing for the aerobic bacteria, and bioballs put in the middle of the coil denitrator for the anarobic bacteria to live on.

    With an exsisting maxijet pump. This project should cost around 30 to 40 dollars.


    And denitrify about 250 gallons (yes, I only have a 90 gallon) but overkill is awesome!
    90 gal tank
    200 gal power fussion skimmer

    1 firefish, 1 wrasse, 1 juvi yellow tang, 1 watchman gobi
    70 pounds free Live sand,200 pounds free Live rock
    1 power heads,

  2. #2
    Former Moderator a4twenty's Avatar
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    can't wait to see the pics, and step by step instructions :b7:
    `

    120S RR tank with 60G basement sump / fuge

    Return Pump: Little Giant 4-MDQX SC
    Water Movement: MP40W, Seio 1500, (2) Hydor K4's
    Lighting: 400W SE MH with 10K Venture
    Skimmer: Euro-Reef RS250 with gate valve
    Other: RODI, RDSB, PO4/AC reactor


    My Gallery

  3. #3
    ijo
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    Hurry it up already!!! hehe

  4. #4
    Senior Member BIGGUNSAR's Avatar
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    I have spec'd out the parts already (just made sure they had it)

    so saturday, it's game time.

    I should have it up and running by sunday nightish (24 hours for the silicon to dry)

    PS, what type of silicon is safe for fishes.

    Other than that. It should be 14 pvc parts.

    Simple dimple.
    90 gal tank
    200 gal power fussion skimmer

    1 firefish, 1 wrasse, 1 juvi yellow tang, 1 watchman gobi
    70 pounds free Live sand,200 pounds free Live rock
    1 power heads,

  5. #5
    Senior Member BIGGUNSAR's Avatar
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    Alrighty, here are the components.
    Sorry for the delay,but last week was too nice to go shopping for dentirator parts.

    This weekend has been cloudy, so here we are.

    This is two sleeves you will need (and you will need a cover for the bottom of the PVC tube for your denitrator)

    Next we have the top (notice that it's a screw on. So incase you want to change media, or length of tubing in the denitrator...you can)


    Here we are looking right down the barrel of the denitrator. You will see at 4ft high, the denitrator could use 30 or 40 feet of 1/2inch tubing. I originally bough 20ft)


    Here is the size of your PVC tube denitrator. This should easily remove ALL nitrates up to 300 gal! And it holds 10 gal of water within the tube.


    Here is the RETURN outlet, piece by piece. See the hole already drilled, and the pencil marks for the next hole to be drilled, which will be for the intake.


    Here it is pieced together, but not glued or siliconed yet.


    Again from another angle.


    Now finally, you see the intake setup on the left, the silicon and finally for your outtake, you will attach the 1/2inch tubing to that ball valve. 1 drip a second should do it.


    At that point, once you silicon and glue all the parts together. You can drop bioballs down the denitrator, as media. And within 1 to 2 months. You will have ZERO nitrates in the most heavily stocked 100 to 200 gal tank.

    Super simple, no more water changes. Just use kents esential nutrients once a week to keep the right water balance. Voila...done.
    The reason for 1/2 inch tubing? Becuase you can take a maxijet, and fit that tubing right over the outtake of teh maxijet. And secure it with a tie wrap.
    The ball valve will control the drip and you wont' harm the maxijet. Becuase your controlling the flow of water, at the OUTtake, and not the intake which would damage the pump.
    90 gal tank
    200 gal power fussion skimmer

    1 firefish, 1 wrasse, 1 juvi yellow tang, 1 watchman gobi
    70 pounds free Live sand,200 pounds free Live rock
    1 power heads,

  6. #6
    liv
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    nice diy denitrator !

    as for water changes.. its not only to replenish trace elements
    I still strongly recommend water changes.... specially to you.. since you can scoop it directly out of the ocean. he he

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  7. #7
    Senior Member BIGGUNSAR's Avatar
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    More pictures will be taken, as the project completes.
    This week we will see at least the screw off cap being built.
    And the bottom of the denitrator coil being sealed.

    At that point the only thing left to do, is seal the top and silicone, screw on the cap. and put the pump in the water and start the denitrator working.

    *I will also be grabbing 10 gallons of sea water for the offset from the denitrator. As that denitrator will hold 10 gallons of water approx.
    90 gal tank
    200 gal power fussion skimmer

    1 firefish, 1 wrasse, 1 juvi yellow tang, 1 watchman gobi
    70 pounds free Live sand,200 pounds free Live rock
    1 power heads,

  8. #8
    Senior Member BIGGUNSAR's Avatar
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    PS liv....here is a good read for you and water changes

    http://www.reefs.org/library/article...htbill_wc.html
    90 gal tank
    200 gal power fussion skimmer

    1 firefish, 1 wrasse, 1 juvi yellow tang, 1 watchman gobi
    70 pounds free Live sand,200 pounds free Live rock
    1 power heads,

  9. #9
    liv
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    Former Moderator liv's Avatar
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    ya.. great article for sure

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  10. #10
    ijo
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    Looking great Andrew!!! I had no idea you had these type of skills (hehehe :P )

    How 's your tank comming along... need updated pics!!

    IJO

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