A boat with an anchor on board floats in a swimming pool that is somewhat wider than the boat does the water level in the pool move upward?

When the boat is first lowered gently onto the surface of the water, the surface level

rises slightly, regardless of the boat's size, shape, or weight, or what it has on board.

The boat floats because it has displaced an amount of water that weighs exactly as

much as the boat does. That means it has pushed some water out of some volume

that the boat now occupies. The water it pushed aside has to go somewhere, and

the surface level in the pool must rise.