Your thoughts and experiences on plywood tanks

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BMac91

Plecostomus
MFK Member
Mar 14, 2011
433
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Alabama
So, I have been in quite the predicament lately. My AGA 220 sprung a leak after heating the water up to 86 to battle a little bit of ich. I have since had to move everyone around and am deciding what my next step will be.

My first reaction was to order the 440 acrylic 96x48x24 tank, however, $3000 before being drilled has was a pretty tough pill to swallow and I really don't want to spend that type of money right now.

Second reaction was to reseal the 220 and wait a year or two before my motoro is large enough to need that size tank. So, my wife has been awesome enough to get in the tank, completely strip the old silicone off, cleaned it up and we gave it a shot on resealing the other night. It was going great at first, but we hit about the 5 minute mark and things started to rapidly dry, 72x24x30 is a big tank to seal as your first shot. Needless to say, it dried on us around the 7-8 minute mark as we had started to peel off the tape, it ruined all the silicone and will need to be stripped again and need to be attempted again.

Which leads me to now. My wife and I are "DIYers" when it comes to most things and I have a garage full of power tools and saws, etc. I am now thinking about breaking down the 220 and building a plywood tank and using a piece of the glass from the 220 for the front viewing panel.

So, I guess after that lengthy story, what are your guys feelings toward the plywood tank? Obviously they are popular still, but for you guys that have done it, how long have they lasted so far? Any leaks sprung? Unexpected important items needed to know for the build?
 
well - i have not built one YET - but I am about to start in the next month or so. I have glass from a Broken 240 which I plan to use to construct a 350. 96x28x24 - ish. i have bin doing my research and trying to work out all the details. Even bought a few new clamps and screw jigs in preparation for this project. I plan to fallow very closely the procedure's that Joey (King of DIY) showed in his How to Video's.
As for what I think, I like the Idea and have seen a few 1st hand. I believe that if constructed properly they are GREAT! I am also a DIYer and have bin building stand , Hoods, & re-sealing tanks for many years. It seems very doable to me!
 
Interested to see responses on here, as I'm in a very similar circumstance however in UK so materials are a bit more expensive.

I'd say give it a go, watched joeys video so many times! The size your planning on building will be simple and few cuts if you buy standard 8x4 sheet size!

The main concern with a plywood tank over acrylic/glass that I can see is resale value, yes it will cost less to build, but if you decide to sell after a few years your unlikely to get much if anything for it?
 
Yeah, I have watched all of Joeys videos on plywood builds many times and feel pretty confident as well.

I thought about resell value as well, but I also saw that people reselling their acrylic tanks RARELY get even 50% of what they paid for it, so I don't know that I am as worried about that. Since I have the glass already, the most expensive part would be the pond armor and the plywood, I have all the screws and wood glue on hand from all the various projects we do throughout the year.
 
PS - My dimensions were way off. I meant to type 96 long, 36 deep, 28 high. That's more like A 350 gallon =)
 
Mine is 6'x4'x3' 500ish gallons. It's been up and running for over 4 years without a single leak or any issue whatsoever. Absolutely worth the effort IMO. It's rather gratifying to know you built it :)
Did you use pond armor to seal or the liquid rubber?
 
12x4x2.5 up and running for only about 4 months now but absolutely zero issues with and and I don't expect anything to happen unless I decide to move in which case would sand and reseal the entire tank.

But like others said if I decide to sell it I most likely wouldn't even be able to due to the uniqueness and ugliness of my garage tank. An acrylic at that size I would be able to sell but for a huge loss, maybe 50-75% of original value
 
12x4x2.5 up and running for only about 4 months now but absolutely zero issues with and and I don't expect anything to happen unless I decide to move in which case would sand and reseal the entire tank.

But like others said if I decide to sell it I most likely wouldn't even be able to due to the uniqueness and ugliness of my garage tank. An acrylic at that size I would be able to sell but for a huge loss, maybe 50-75% of original value
Thanks, and that is a great size tank!

Yeah, my observations have been that acrylic tanks really don't hold value, seem to be worse than a new car. Which is really why I am having a hard time justifying the cost of it. Especially if I could build a plywood tank and stand with custom drilled holes that is roughly the same size (maybe larger), with a smaller viewing window for 1/3 of the price of just the acrylic tank.
 
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Thanks, and that is a great size tank!

Yeah, my observations have been that acrylic tanks really don't hold value, seem to be worse than a new car. Which is really why I am having a hard time justifying the cost of it. Especially if I could build a plywood tank and stand with custom drilled holes that is roughly the same size (maybe larger), with a smaller viewing window for 1/3 of the price of just the acrylic tank.

Go for it, you wont regret it
 
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