Try gtetting a bird bath and putting it in what seems to be the path the wasps take to the pool.
All they want is a drink of water. Have water available away from the children.
Unless you know where the hive is and can destroy it.
Quit keeping a wasp nest in the children's pool
burn their hive
Our kids cannot enjoy their kiddie pool due to wasps coming around to take in some water! Is there anything to deter them?