What pump to drive - Nitratereductor NR 5000 Aquamedic

Discussion in 'Pumps and Waterflow' started by Nemeziz_za, 4 Feb 2013.

  1. Nemeziz_za

    Nemeziz_za

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    Hi,

    I need a feed pump for my Aquamedic - Nitratereductor NR 5000 with the following considerations:

    Initial cost
    Energy friendly
    Slow start, this pump is expected to perform regular on/off responses to the controllers demands

    The flow requirement as I understand is minimal and the pump cant be used to drive other equipment due to its on/off nature.

    Your input is appreciated.
     
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  3. Ridwaan

    Ridwaan

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    Try an Aquamedic Peristaltic pump for this job
     
  4. leslie hempel

    leslie hempel Moderator MASA Contributor

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    cant you bleed off of your return line? and tap it down to a drip?
     
  5. OP
    Nemeziz_za

    Nemeziz_za

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    Thats a pretty good idea, I got two of these lying around SP-3000 AQuamedic Nouveaumat

    I would prefer the controller being in complete control of the unit.
     
  6. Nemos Janitor

    Nemos Janitor

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    Not sure on the flow rate of those SP-3000. But if they are in the 32ml/m range then i would run one permanently and the other one controlled on a redox controller. If you do away with the deniballs and go vodka solution dosing then you can control the carbon feed as well with a 1ml/m peri pump. Now you have 101% control of your denitrator.
     
  7. Nemos Janitor

    Nemos Janitor

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    Yup the SP-3000 is a ~ 50ml/m pump. Might take some time to get the anaerobics going at that flow rate but depending on stocking and bio load could be the answer.
     
  8. Ridwaan

    Ridwaan

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    @Nemeziz za ,any chance of selling those aquamedic sp3000 pumps?
     
  9. OP
    Nemeziz_za

    Nemeziz_za

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    @Nemos Janitor I have the circulating pump thats supplied with the Denitrator, its an Eheim. Im looking for ideas on what feed pump I could use based on the minimal flow and the constant stop/start action.

    This feed pump is controlled by the Mv controller, suggestions to use the SP3000 dosing pump is a good one..I think.

    I have a few question though, have others used this pump in this manner before and does/will it cope with any back pressure from the reactor and its closed loop?

    My final question is, what pump if not the SP3000 would one use when doing a fresh install incorporating a Nitratereductor NR 5000?
    @Ridwaan Nope sorry man, if I dont use it for this function I will keep it as a backup for my ATO
     
    Last edited by a moderator: 26 Nov 2015
  10. Ridwaan

    Ridwaan

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    Maybe @Nemos Janitor can offer you their Deltec Peristaltic pumps?
     
    Last edited by a moderator: 26 Nov 2015
  11. Nemos Janitor

    Nemos Janitor

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    Yes i understand that. What you need is two feeds (SP3000) to the nitrate filter. One feeds 24/7 the other is operated by the MV controller. This way you don't have redox spikes in the reactor.

    On my tank i use two 32ml/m peri pumps in this fashion.

    in the diagram i use the 32ml/m peri pumps in place of the valve "D" & "E". Instead of a solenoid valve i use the controller to switch "D" on and off.

    "G" is a smaller 1ml/m peri pump that doses the carbon. (vodka, methanol, etc)

    http://www.theaquariumsolution.com/files/NFP Automatic_2.pdf
     
  12. Nemos Janitor

    Nemos Janitor

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