Can I use Polythene tape, such as "1433 All Weather Tape"
Or is there a suitable technique to weld the joins in this type of tank?

Thanks watkins!
Heavy duty polythene seems very nice.
How do I go about attaching it to wood and joining it?
Any tips will help.

Thanks again!

thank you pbacot.

Fiberglass? can you please point me to a tutorial? I only find sub-woofer enclosure guides...
Wood expensive? yet is it, how else can I make this? Plastic mold - more expensive,
and trying to find alternatives such as child's wading pool, is virtually impossible because
we are pretty strict with it's sizing. Also having a single 2 meters x 2 meters, needs a cubevan to transport,
more cost..

what else can be fabricated to make a water tight container?

Waterproofing Wood/ making water tank out of wood?

Hello, I am working on a university project.
We need a mist-collection reservoir (environmental project). Because the budget is very limited, and only so many tools are available,
it was decided that we make it out of wood.

Please see attached diaghrams.
Everything is joined using 3" wood screw.
The water will drip to the bottom of the tank, and maybe go up 4-6inches at most, before it is sucked out.

using standard home depot construction lumber, and 1/2" plywood as a bottom.
Is there a way to waterproof this?
a method of sealing the wood joints to avoid leaks?
how long will it last?
Any help/advice is greatly appreciated,

Thank you!