Chlorine/Indoor pool/ Hot tub night before meet

Rick
You didnt know any better but you care so much this will guide you where you need to go.
I wouldnt worry about it too much. Maybe this lesson was important to learn now for results that will certainly come later on when your daughter runs in races as she matures.
It is well known that water is exhausting. Can be great for training to keep injuries at bay and lay in work for athletes to reduce wear and tear but never the day before a meet and two hours is crazy.
Hot tub just adds more heat to the fire.
Use the pool as a recovery tool.
For example I get my son in the pool especially in the past 2 months when he gets really wound up. Nothing like forgetting all your worries when you put two 11 year old boys in the pool to have some fun.
We stay at hotels before soccer tournaments and Charlie and I used to make sure James didnt go near it. Kinda harsh cause he is only 11 now but he didnt want to go anyway as it made his muscles feel weak.
YOU will do just fine because you love your daughter and you will find your way.