794 gallon ply tank build

  • We are currently upgrading MFK. thanks! -neo
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Thankyou everyone for all the great comments.:)

rallysman;3340956; said:
Fantastic work! That looks great.

I might add that it looks a lot like the one I burned (only bigger/more solid) where did you come up with the design?
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Do you have any pics of the one you had? Post them if you do. It would be good to see.

I have been pondering the idea for quite sometime but at first it was with designs using external frames.
You may remember this idea. This is 1100+gal. 10'x 4'x 4''. Nice and solid but nice and expensive too.:D
outdoor tank final design.jpg


Then I thought about using glass tanks on a stand design. These would all use the lowest tank as the sump/filter and make use of tanks I already have. I abandoned this as I still have heating issues and several smaller tanks. Not really what I am trying to achieve.
Tank stand.jpg


I went back to my original idea but wanted to get rid of all the external bracing so it was obvious to reduce the size a bit and fiberglass it for strength.This is what I came up with but this was for 19mm ply.It's about 650g.
8 x 4 x 3.jpg


The build I have done now is done in thicker ply so I went 100mm higher and the sheets were 2700 instead of 2400 giving me an extra foot in length. Pretty much the same as my design above but the dimensions changed a little taking me to nearly 800g.:)
 
Looks fantastic. One of these days, I'll build a tank just for the experience.
 
greenterra;3342287; said:
Google sketchup. It's pretty good once you get to know it and free.
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Hell yeah, very good program, done some good drawings while it's been in my possesion.
 
you felt like only ply with fiberglass wouldn't be strong enough for 10' x 4' x 4' ?

how can we judge what are the "max sizes" we can build accordingly to the technique used?
 
leg89;3347263; said:
you felt like only ply with fiberglass wouldn't be strong enough for 10' x 4' x 4' ?

how can we judge what are the "max sizes" we can build accordingly to the technique used?
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10' in length would require a joint in the ply on the back, bottom and front.. Most sheets are only 8' long. Hence the need for external bracing. By staying within the sheets size, I eliminate these joins and a potential weak point. The largest sheet I can find here is 9' x 4'. I guess to answer your question, sheet size is the determining factor for size.
 
How much does that baby weigh???
 
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