/diy/ - Do It Yourself

To keep it brief, I'll just fire off my design specs and answer questions if there are any.

I want to build a cylindrical pedestal to hold a heavy spherical object.

>The pedestal will be three feet tall, and about 12 inches in diameter
>The sphere on top will be an acrylic shell filled with water. It will weigh about 160 pounds when full!
>The whole assemblage must be semi portable (I will have access to a truck with a lift gate, hand trucks, carts and so forth. The sphere will only be filled with water once the pedestal is in place).
>Economy is important, but not the top priority.

Right now, a 12 inch PVC pipe seems like a quick, economical, lightweight way of getting a sturdy pedestal.

The question is, will a 12" PVC pipe bear the stress basically indefinitely? It's for a temporary installation, but if the pedestal cracked, it would be a complete disaster. Is it worth reinforcing it with bands of Sintra, or is the whole idea totally fucked?