Four of your brackets are taking all of the load. The outer brackets are only holding the rods in place. What you've created is a simple lever on the inner brackets and you're actually multiplying the forces there. You've got straight line force on wood fibers. Start sloshing water around added to your actually moving the tank and you're just asking for trouble. We're only trying to help you avoid a problem. Trust me, I've built a few things that sounded good, worked in theory, and actually worked great in practice. For a while. Fortunately those instances have been rare. Sort of. Last one was a lumber cart. Looked great though
Quote me as saying I was misquoted.
The problem is you don't know what you don't know.
Life is simple…People complicate it.
On the west coast of the east coast of North America
Here's to our wives and sweethearts - may they never meet.
I can't live life at 140 characters