First light breeze it toppled over. I readjusted the umbrella to make sure it was straight in the base and tightened the screw as tight as I could get it. So far it’s standing. Even with the reservoir filled it’s movable. Doesn’t sit flat, pivots from side to side with the umbrella up and slight breeze. Instructions were no help at all. Had to figure out that the base screw was in the sleeve of the umbrella and if there was a second screw as indicated in the instructions it didn’t exist. Easy to assemble once you figure out the screw part. Not the best stand I’ve had. Bought it hoping it would keep the umbrella from toppling. We’ll see what the summer breezes bring.