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    300 Gallon Plywood tank build

    Discussion in 'DIY Tanks' started by maxumis, Jul 26, 2007.

    1. maxumis

      maxumis MFK Members

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      Okay, here goes.
      I did a practice tank before this one to make sure that I have the skills to do this tank. Here's a link. The practice did help a lot, but it didn't prepare me for the biggest challenge of this tank... SIZE! An 8' 300 Gallon tank is HUGE and very HEAVY! I had to lug this tank in and out of my flat every time I wanted to work on it. Very very very frustrating. :irked:

      Okay, here is the wood for the tank. I used the 2x4s for a temporary work bench for this project.
      0.jpg

      Here's a pic of some screws ready to be driven in.
      1.jpg

      One side done, lining up next side.
      2.jpg

      Here's the tank outside with a layer of fiberglass. Not my best fiber glassing effort to date. You can notice the white blotches here and there... I did however go over every thing a second time with the polyester resin, and that sorted the "dry fiberglass" parts.
      3.jpg

      Here you can see the bottom of the tank. When I installed the bottom piece, it pulled the tank frame nice and square. At this point the tank also has 4 layers of epoxy over the fiberglass layer. The day this pic was taken, I dropped a chisel into the tank by accident. The tip of the chisel chipped the epoxy, but the fiberglass layer remained intact. So the tank should be able to survive a couple of bumps here and there. You can also notice the thing I'm the proudest of; all the parts fit together via miter cuts, thus hiding all the "open edges" of the plywood. Cutting those miter cuts was a LOT of work. 4.jpg

      These two pics show the hole for the drain. All the epoxy and fiberglass layers made that area VERY uneven. So I fashioned a sander and sanded it level. Then I put a layer of epoxy over it again.
      5.jpg
      6.jpg

      I hate this pic! I was handling the piece of glass for the front of the tank when I gave it the slightest, softest bump on the floor... oops. That little bump is gonna cost me +- $200. Nice... :irked:
      7.jpg

      Here's the tank. Inside the flat and OUT! It is SO heavy to lug around alone.
      8.jpg
      Photo0006.jpg

      And here's the sump for the tank
      sump 002.jpg

      Updates might be few and far between from here on out, since someone will have to buy some new glass before the project can continue... :irked:
       
    2. Tongue33

      Tongue33 MFK Members

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      Ok that is awesoem looking :)

      Though the sump is Confusing for me :) Can you explain how it is going to flow and work?
       
    3. amehel0

      amehel0 MFK Members

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      nice i like the 3rd and 2nd last photo. the wood colour against the white looks real good
       
    4. maxumis

      maxumis MFK Members

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      The green arrow indicates where the water will enter the sump system and flow through a course foam layer into the next compartment of "The Tray".
      The light blue arrow shows the flow through an area that will have BIG ceramic rings in it. The function of "The Tray" is to up the surface area of water exposed to oxygen. So basically it makes my 4' sump an 8' sump... If that makes sense... The light blue arrow also shows that the water will overflow from "The Tray" to the "Main Sump". (kinda feel like Dr. Evil here... "Lazerrrr" :grinno: )
      The navy arrow shows the path the water will flow though the chambers of the "Main Sump". The chambers will be filled with smaller ceramic rings, pieces of foam, pee sized gravel, and scrubbies.
      The red arrow shows where the pump will pump the water back to the tank.
       

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    5. WyldFya

      WyldFya Baryancistrus demantoides
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      Beautiful design!
       
    6. scottgeeze

      scottgeeze MFK Members

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      That's a beautiful home made tank. :nilly:
       
    7. RexFish

      RexFish MFK Members

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      That is a very nice tank and the colors are eye catchers. Makes me want to make one too
       
    8. nukeman

      nukeman MFK Members

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      Wow, that is beautiful. I love that color stain.
       
    9. mcox3

      mcox3 MFK Members

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      i agree the stain is nice.
       
    10. flapper12

      flapper12 MFK Members

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      Very very nice stain...looks awesome with that white.
       

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