How long do plywood tanks last? I have a specific size area to put a tank, but my father thinks that the plywood will bow and explode from the water pressure, and that the seams will separate from that.
It is not a huge tank, but the dimensions are hard to find, I am looking for an 8 foot long, 2 foot high, 18 inch wide tank. I found tanks that are close, but they are 2 feet wide, and they won't fit.While I disagree to some disagree with James M , he does have a point. My first build took some experimentation with fiberglass resin. My second build took some searching for the right epoxy swimming pool paint , and paying a good price for high quality plywood. I did it as a graduate student in college, with minimal woodworking skills. It does take time, money and effort . However, it can be done , and in some cases , cheaper than buying a custom glass or acrylic tank.
Now as a well paid professional, I could plan and afford a large custom tank, but with my xperience, knowledge and workshop, I'd probably build my own plywood tank.
In the OP circumstance, it depends on what he is trying to achieve. How big, how custom, and could he build it from glass himself?