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  #21  
Old 10-16-2008, 07:31 AM
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Quote:
Originally Posted by AndyL View Post
What's killing me is I started this thread yesterday with my full plan laid out - to avoid questions/disputes after the contest started... Nobody said a thing - 2nd paragraph of the first post says "rebuild with 1/4" glass adding 3" in length". Today this becomes a problem... This is where the frustration lies.

So, where does the compromise lie - I can tear this down as detailed in my last post still retain all the glass but add some new sides, 1 end and bottom. Other option I see is to laminate all the glass, still extending the length still retaining all glass in factory location - just adding 1/8" laminated over top.

I didn't get a chance to read your thread after the my initial post (made after a quick look at the sketch-up illustrations). I didn't see anything about your plans until I caught up on some threads today.

Compromise is thus: You have to use the stock tank (modified if needed). You can't use/replace 1/4" glass in the display. It becomes a CUSTOM tank, built for the specific needs of the surge. I don't know what this 1/8" laminate is... Will it work for you?
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  #22  
Old 10-16-2008, 01:09 PM
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Laminating glass = basically sandwiching another pane of glass over an existing pane. Basically gluing another layer of glass over the original.

Though my question becomes what happens if I break a piece - glass as thin as these tanks are made of; is special order... The 10's are 3mm easy peasy - but 2mm is not easy to come by.
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  #23  
Old 10-16-2008, 03:11 PM
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I'd say remove the one side and extend the tank for your overflow needs, or drill the tank and make some kind of internal or external overflow. If the tank breaks from the surge you're obviously using too much surge, there's no way corals will like that much water movement, not to mention the sand and rock structure.

You're making this more complicated than it needs to be, you're using a sump so you don't need an AIO, all you need is an overflow and there are plenty of ways to do that within the rules.
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  #24  
Old 10-16-2008, 03:46 PM
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I'm going to dissagree on too much surge, I've got a pretty good idea how much surge I'm needing (based on testing & referencing other tanks). It's not so much the glass I'm worried about, it's the limited section of silicone adhesion... If the 2.5g blew a seam with a 1g surge, I have little faith in those same dimensional seams holding on a 5.5 even with a minimal surge. Thus the reason for the reinforcing.

There are many ways I could approach building this, however as far as the tank, I'm going to run with what I know to work (I'm testing/tuning enough other theories with this tank). Overall design was done like this for two reasons, the full width overflow is sized to handle the surge of water (calculated flow) baffle system is to keep the water level at a minimum height, herbie overflow is used for noise control - may actually add a third bulkhead (base + surge + emergency). To me this is simplest/easiest/quietest way...
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  #25  
Old 10-16-2008, 04:24 PM
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If you're worried about the seams reinforce them by siliconing some plastic, wood or aluminum corner covers on them.

A Herbie will not be quiet with a surge, especially 1 gallon on such a small tank. A Herbie works on the bases of steady state flow.

I'm just going to come out with this, seriously a surge on a 5.5?? What possible benefit could you get from that? Noise and air bubbles, sounds kind of silly to me when you could use a maxijet on a timer and get the same random flow without the complications. Call me crazy but I usually try and avoid things that are unnecessary and cause problems and complications, but maybe that's just me.
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  #26  
Old 10-16-2008, 11:00 PM
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I'm well aware of how a herbie works; been using them on quite a number of sytems since '04.

Seriously, you don't see it? Powerheads = heat this will be a problem in 5.5's; using wavemaker type timing devices are generally less than reliable and of all the ones I've seen (short of the tunze wave boxes; and that eco(name escapes me) neither appropriate for a nano) they don't manage to produce proper wave action.

Here's one of the tanks which gave me the idea years and years ago to try this out... The video links don't work anymore, but the pictures are still there...

http://www.nano-reef.com/forums/inde...dpost&p=770299
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  #27  
Old 10-16-2008, 11:48 PM
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AndyL....I give you props for thinking outside the box (or the stock AGA, in this case). I would love to see a surge device on a 5.5G, and I hope you can still make it work! Could you reinforce the seams with small strips of glass siliconed at the corners? I know that's probably not the clean look you're going for. You sound pretty handy, though.

Anyway, I hope you keep the idea, if only for my own selfish curiosity
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  #28  
Old 10-17-2008, 12:11 AM
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Meh, let's see what JDigital says about laminating the glass Since I'd be keeping all the original glass in its original location, just adding glass over top - that might work. If I can go that way, I will... My interest in this contest was as an incentive to get off my arse and try the CSD & put the theory into a test on the UDSB/CR concept...

I don't think reinforcing the corners will be adequate; I might be able to test it out on another 2.5 - see if it lasts (First 2.5 blew after ~40hrs), but I have my doubts about it... Have to see if I can come up with some kind of corner bead material that would work for such a purpose.
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  #29  
Old 10-17-2008, 01:14 AM
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Quote:
Originally Posted by AndyL View Post
Meh, let's see what JDigital says about laminating the glass Since I'd be keeping all the original glass in its original location, just adding glass over top - that might work. If I can go that way, I will... My interest in this contest was as an incentive to get off my arse and try the CSD & put the theory into a test on the UDSB/CR concept...

I don't think reinforcing the corners will be adequate; I might be able to test it out on another 2.5 - see if it lasts (First 2.5 blew after ~40hrs), but I have my doubts about it... Have to see if I can come up with some kind of corner bead material that would work for such a purpose.
I don't have a problem with lamination... its a mod.
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  #30  
Old 10-17-2008, 01:46 AM
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Thanks Josh,

So, Plan now will be to dissasemble the full tank, laminate all panes, extend 3" thus creating the original drawing - with a few extra seams Guess I need to order me a sheet of 3mm tomorow...

Suppose this is actually a bonus, should regain a good 40$ into the budget; I think I can find a place to use that!
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