HELP!! DIY Reactor

Discussion in 'Anything DIY Related' started by Jaco Schoeman, 25 Jan 2011.

  1. Jaco Schoeman

    Jaco Schoeman MASA Contributor

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    Guys... I have recently added NP Reducing bio pellets to the tank. Read the instructions and it said one can even keep it in a sock in the column, and then I thought I wanted a bit better, so I built a small reaction chamber for it.

    Thing is, the water comes in on one side, and then exits the other side, but this just pushes the bio pellets to the other side of the reactor in one mass, without them "swirling" around...

    Then just to make sure this would be fine, I emailed the manufacturer, who then said they have to move around, otherwise they will just become on solid as the bacteria start growing...

    So, I really do not want to spend R1000 for a PhosGuard reactor etc.

    How do I build a DIY reactor that will let the pellets swirl around? I have searched the web but there is no real step for step instructions. I also (to be honest) do not really understand the working behind a reactor to make the pellets swirl and move.

    Can onyone help urgently please, I have to have this sorted out TODAY before those bio pellets set into one block...

    Thanks!!!!
     
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  3. seank

    seank

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    How about building something similar to a kalk stirrer. Basically a 160mm Pipe, closed at bottom and top. 02 Small holes- one for water going in and one for water going back to tank.

    On side of pipe, put inlet with pump, pump connected to timer, comes on every 3 minutes for 01 minute to stir the media inside
     
  4. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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    The problem with these pellets, is that they become a bit sticky. This is exactly how my current reactor works (except for the timer part), but what happens is that if the power is switched off, and then back on, the whole column just moves in one mass to the other side - without actually stirring at all.
     
  5. 459b

    459b Moderator MASA Contributor

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    how much flow do you have going through them?
     
  6. mariusmeyer

    mariusmeyer

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    If the stick together after a power failure then it is a crap product IMO. Or you have to put it on a UPS so that it does not happen. Only switch power off when you are willing to replace the media.
     
  7. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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    very little to be honest. I used one of those very small little pumps that has a 60mm head or something in that line. I think it is a 300l/ph pump...

    Too small you think?
     
  8. seank

    seank

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    [​IMG]

    [​IMG]

    [​IMG]
     
  9. 459b

    459b Moderator MASA Contributor

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    can you brew beer in this as well?

    how big is the reactor? The pump might be too small. Alot of the smaller pumps have shocking had heights.
     
  10. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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    Geez- that is a huge reactor!!!

    David I used a gravel cleaner tube, so that is what, a 50mm diameter pipe and about 300mm high... I really do not need anything bigger as the amount of bio pellets do not even fill that tube and my tank is small...
     
  11. JD167

    JD167

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  12. 459b

    459b Moderator MASA Contributor

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    ohh, that makes sense. I thought you were using somthing the size of a kalk reactor.
     
  13. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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    @ 459b - is that a problem?

    @JD167 - that does look amazing, but I do not really understand the design. Does the water pump to the bottom and then push up throught the top. And what prevents the media from being pushed out etc?
     
    Last edited by a moderator: 26 Nov 2015
  14. 459b

    459b Moderator MASA Contributor

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    I would have said pump is far too small if you were using the reactor i had in mind.

    The reactor in the link is a chamber fom an RO unit. Think water flows in through central middle tube to the bottom. Then flow is controlled to keep pellets tumbling but to not be be strong enough for them to exit the reactor. Or you could put a piece of sponge/filter mat above the media to stop this happening
     
    Last edited: 25 Jan 2011
  15. JD167

    JD167

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    Correct. Water goes down the center pipe, up through the media and out the top. If you do it the other way round it will compress the media.

    For the outlet, simply take a PVC pipe, cut small slits in it and plug the end. It will prevent the pellets from leaving the reactor. Check this post of mine for an example.
     
  16. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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    So I think it is then safe to say that a wider diameter chamber would work togehter with a stronger pump? Then maybe even a bottle neck at the bottom in the same way you would do a brine hatchery? Obviously the container is just closed at the top where are a brine hatchery is open top...
     
    Last edited: 25 Jan 2011
  17. dallasg

    dallasg Moderator MASA Contributor

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    it sounds like your pump flow is to little, the link jd sent is what you want, also look at manic old thread, he had a home made one there
     
  18. dallasg

    dallasg Moderator MASA Contributor

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  19. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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  20. JD167

    JD167

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    Very nice and neat!
     
  21. Jaco Schoeman

    Jaco Schoeman Thread Starter MASA Contributor

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    Yeah, the socks are quite nice, just dont like the colour... :lol:
     
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