Derek Broughton wrote:

What makes you think that? It's not true. The lateral force is exactly how
these new self-supporting above-ground swimming pools get their stability.
However, the greatest lateral force is at the bottom of that above-ground
section, so maybe it'll work.

But the lateral force works in all directions at the same time, which is
why the swimming pools are stable. The lateral force of water at 1 foot
deep is 0.433 psi. Assuming the frame and joints are secure and can cope
with the low psi then the force in one direction is canceled by the same
force in the opposite direction. The lateral force becomes stable,
leaving only the downward force of gravity that needs real support.

--
Andy