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    Thread: Static prefilter prototype

    1. #1
      Kent Wallace's Avatar
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      Static prefilter prototype

      I've been working on a static prefilter for suspension in the top of a settlement tank or on a midwater/skimmer circuit for sometime now. I thought I'd let you see it first. My favorite plastic media for static filtration is the "Easy Clean" PVC shavings. This holds 3 cu ft. It also holds 3 cu ft of Williams "BioWave" floating media.
      I'll be testing them tomorrow.
      Attached Images Attached Images    

    2. #2
      Kent Wallace's Avatar
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      The large one is 18 inches deep and 30 inches in diameter with a 4 inch outlet.
      I'm working on a smaller 55 gallon drum sized one that is 16 inches deep and 18 inches in diameter.

    3. #3
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      where/how?

      Hey Kent, Just what I've been looking for! Where/how can I get/make one?

      Andrew

    4. #4
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      Looks Good Kent.
      Did Lim change the BioWave recently?
      Dan
      What you see is much less a matter of what you're looking at than where you're looking from.

      I don't know much, but there's quite a bit that I choose to believe.

    5. #5
      Cowiche Ponder's Avatar
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      Kent can you explain in my terms (KISS, keep it simple [for] stupid )

      Can I assume in a settlement tank that this goes on the pipe going OUT of the tank? To clean, lower the level on the tank and hose out?

      If I were to use something like this on a settlement tank would I have to change the height on the outlet on the tank? Mine is torwards the top (spirex) and it's pretty easy for it to suck air even with the draw down. Does this unit float some to take care of that?

    6. #6
      Kent Wallace's Avatar
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      These are my prototypes. I'm testing tomorrow. The finished ones should be in black and have my outlet ball in the center. Hopefully I'll have some completed ones with pricing in about a week.

    7. #7
      Kent Wallace's Avatar
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      Dan Williams new media is slightly larger. Perfect for me.
      Cowiche Ponder, Yes it goes on the outlet. You could run your pipe down over and back up the center and the 4 inch outlet can be reduce to 3 or 2 inches if necessary.

    8. #8
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      Looks good! waiting for more!

    9. #9
      Kent Wallace's Avatar
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      Here's the 18 inch one. It holds one cu ft of media and can have a 3 or 4 inch outlet. It fits inside a 55 galon drum.
      Attached Images Attached Images     

    10. #10
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    11. #11
      Dwight is offline Senior Member
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      Kent , any idea of flow through these things. Look like a great idea before my Nexus
      Dwight

    12. #12
      Kent Wallace's Avatar
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      Dwight, I have two ponds to test flow on. One at 8000 gph and one at 10,000 gph That should give me a fairly good idea.

    13. #13
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      Another Kent retro-product .

      Kent in trying to understand all the various things people do in their settlement/vortex/drums. I still wonder why so many versions like micro/vortex or static/vortex and fluidized/vortex. Does each one do one thing the best, so many prefer different combinations, in your opinion easily explain the differences and why you use them and what sequence would you prefer them to be if you had one of each in a circuit. If you don't mind.
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    14. #14
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      I agree Lee.... plumb confusing for us semi-newbies.
      My understanding is you have to stay on top of the maintenace of the static filters more so than the microscreens as they are self cleaning. Like I ever go out of town.

    15. #15
      Dwight is offline Senior Member
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      Well the whole idea is to make it as confusing as possible. You could build 50 ponds and each could be completely different and al;l work. ....... I'm soooo confused

      Dwight

    16. #16
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      wow that is like a DIY nexus.

    17. #17
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      I'm just waiting for someone to post their top loading washing machine vortex version—full of biomedia that gets run on a rinse cycle every so often, what could be more easy than that? A simple pipe upsizing and maybe a pump change out...

      :drunk:

    18. #18
      Kent Wallace's Avatar
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      Vortex settlement chambers or settement chambers in general are prefilters. Their job is to remove heavier than water solids from the flow to help keep those solids out of the biofilter, lowering the maintenance interval creating a more stable and effective system. The outlet screens for a settlement chamber need regular cleaning to prevent flow restriction. Thus was born the floating microscreen strainer. It's basically a self cleaning outlet screen and because of the size of the screen it also prevents much smaller debris from getting through.
      They do have their drawbacks. They require pump water to clean and they're expensive but they work great. One place they don't work as well is on midwater and skimmer circuits because the stuff that gets cleaned off stays in suspension for a long period of time and is hard to remove from the tank without complete drainage. Ideally the bottom drain circuits would use a floating microscreen and the mikdwater/skimmer circuits would have a media that collects the floating solids and be easy to clean. This is what a static prefilter is for. The debris no longer just floats around in the tank but is trapped in an easy to clean form. The filter is large enough to last for some time, depending on pond and fish load, to ease the maintenance interval.
      Static prefilters can also be used on systems that have too low a flow to rotate a floating microscreen properly or in situations where the budget is tighter.
      Static prefilters also add to the biological surface area bacteria can grow on thus increasing the biofiltration.

    19. #19
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      well the DIY Static prefilter was a sharp idea, and i hope it makes good performance for the creator.

    20. #20
      Kent Wallace's Avatar
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      I didn't create it or invent it, I just simplified it and made it easily available.

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