[IndySun]

Thank you barbegal. Given the height and water volume in this instance, do you consider the people involved took too huge a risk? I do believe acrylic is used in aquaparks and zoo aquatic pools. I skimmed instances of acrylic/water fails. Dare I ask, is acrylic construction a significantly cheaper option to solid alternatives?

[barbegal]

There are no real alternatives. Glass has mostly the same bonding issues but is more expensive and heavier. Putting acrylic or glass panels in a steel frame dramatically reduces the probability of failure but you lose the wow factor of having a single sheet of transparent material.

I don't think any installation of this size can be truly safe. It has to be constructed in-situ being too large to transport so you would have to come up with some way of pressure testing the tank in-situ.