Tommy was already in the pool. He'd grabbed one of the Jedi rebreather things that let him stay underwater without needing all kinds of tanks or equipment, having learned a damn good lesson from the last time he'd gone swimming (or tried to, at least) and was using it. He was sitting on the pool floor, tucked in beside the ladder to get in and out of the pool, and was using it to keep himself from floating back up to the surface.
If he stayed under the water, it was quiet. It was calm. That was all he wanted. Maybe he could even try and sleep under the water.