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  1. #1
    Senior Member tang_man_montreal's Avatar
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    Drop-In Baffle Box...

    Ok, so how many of you have a nice little sump running, but aren't happy with the microbubbles that are making their way back to the tank?

    Here's my problem. I've got a GIANT skimmer running on my 90 gallon tank, and I originally thought I had enough baffles to handle the bubbles before getting back to the tank.

    I was wrong.

    I've got a microbubble issue that I need to a handle on. Ofcoarse, draining and taking out the sump from my stand is a major PITA. Then you've got that 24-48hour waiting period for the silicone to dry. That's not an option. So here's what I've come up with...

    What about building a frame with baffles, and then dropping it in to the sump? This way there's no down time, and eventually when the sump is "drydocked" for something else, it could be permanently installed.
    Better yet, if you don't want to permanently modify a tank to be a sump, just use the drop-in bafflebox, and take it out when needed.

    Thoughts?
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  2. #2
    Senior Member ReefVan's Avatar
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    Sounds like a plan tang_man, think you could post a picture of your sump and perhaps a sketch of what you'd like to make to go in there?

    I've read on RC more than a few times where too many baffles are installed and the resultant flow restriction upsets the pump / sump balance.

    Let's all see what you're thinkin' up...

    Van
    It's not junk, it's un-assembled DIY!

  3. #3
    Senior Member tang_man_montreal's Avatar
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    Ok, Attached is a picture of my current sump.

    Not shown:
    - Skimmer intake is in the right-most chamber
    - Top-off / kalk reactor is in the right-most chamber
    - Return from remote sump (waterchanger) is in the right-most chamber
    - Skimmer output is in middle chamber
    - Powerhead towards remote sump is in middle chamber
    - Floatswitch is located in left-most chamber

    My microbubbles are from 2 areas, the overflow and the skimmer output.

    What I'd like to do is add another 2 baffles on the left (total of 4) without draining and removing it.

    So I was thinking of building a baffle assembly which I could add to the sump while it's running... hence the drop-in baffle-box.

    I havn't drawn up the baffle-box, but picture 2 plexi-glass baffles (1 higher, 1 lower) attached together by plexi-glass sides.
    Attached Thumbnails Attached Thumbnails Drop-In Baffle Box...-vince_sump_design.jpg  
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  4. #4
    Senior Member ReefVan's Avatar
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    Alright tang_man,

    Here's what comes to mind:

    - Are you using a Durso or Stockman overflow pipe and is the air hole too small causing the infamous gurgle or toilet-flush?

    - How high is the distance from the overflow edge to the water level in the overflow chamber? Perhaps too many bubbles being made there? It shouldn't exceed 1 1/2" - 2" height.

    - I have seen some people put a piece of foam or styrofoam with a hole for the overflow pipe in that R/H sump chamber to trap the micro-bubbles underneath the foam surface so it burps out in big bubbles... :biggrinbo

    - You're idea is great, I'm just trying to suggest some common causes with simple solutions...

    Van
    It's not junk, it's un-assembled DIY!

  5. #5
    Senior Member tang_man_montreal's Avatar
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    Are you using a Durso or Stockman overflow pipe and is the air hole too small causing the infamous gurgle or toilet-flush?
    Yup, I'm using a Durso... Nope, no toilet-flush. Quiet as can be.


    How high is the distance from the overflow edge to the water level in the overflow chamber? Perhaps too many bubbles being made there? It shouldn't exceed 1 1/2" - 2" height.
    1.75"

    I have seen some people put a piece of foam or styrofoam with a hole for the overflow pipe in that R/H sump chamber to trap the micro-bubbles underneath the foam surface so it burps out in big bubbles...
    Thought about that too... However, those end up being Nitrate factories if they're not cleaned out enough, don't they? Or am I thinking sponge here and not styrofoam as you suggested?
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  6. #6
    Senior Member ReefVan's Avatar
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    So far so good...

    I'd try the styrofoam, it's inert, it'll collect the micro-bubbles until they burp out from underneath as pockets of air. :

    It's a cheap DIY try...

    Van
    It's not junk, it's un-assembled DIY!

  7. #7
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    Van,
    Tanggoon's Durso is setup properly. I also wouldn't recommend the styrofoam for the simple reason of what you said it would end up doing. If it'll collect the microbubbles till it burps out 1 bigger bubble, the resultant SW spray from that burst bubble can build up a lot more over time because of the bigger rupture, don't you think??
    Tangsqueesh,
    As for the drop in baffle box, it's been used many times by people. I remember seeing where one guy used a big Tupperware with a hole in the top sna on cover big enough to stick the main drainpipe directly in and all around the container where holes in the sides where the water would exit from. Essentially, the water falling out of the drainpipe goes directly into this box first and the turmoil tends to stay inside while the water itself flows out of the holes.

  8. #8
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    VINCE

    what I did on my 90g[and I'm so hurt you didn't ask a fellow 90tanker] is I took a little rubbermaid and cut a hole in the lid,then I cut 4 holes on the side of the rubbermaid about 3 inches from the top. I placed the container on some rocks to elevate it a bit out from the sump level. Then just ran the overflow into this. It works great. acts like a muffler and all/most of the bubbles disappate inside the box before leaving those 4 holes into the sump. I have this on the opposite side of the return pump.hope this helps, me compadre!
    P.S I have 0 baffles! so this would work even better for you!

  9. #9
    Senior Member tang_man_montreal's Avatar
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    Toutouchamacquire,
    Hmm, I don't know why I didn't think of the tupperware solution. I'll have to try that as it seems easier.
    What I don't catch is whether the water pours out of the little container, and if it does, do you hear a waterfall sound?


    Pornstar (er... Johnny),
    I'd love to see a pic of how you have it installed. Or maybe you know of a pic on the 'net that I could see?
    Oh, and next time, I won't forget my fellow 90 reefers... promise!
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  10. #10
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    tang-man

    I'll take a pic tonight . Just elevate the box so that the holes you cut on the side of the tupperware run just above your sump level. It works like a charm. you can make the rubbermaid fairly large.

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