Most aquatic pool operators measure the pool's performance based on what percentage of the time the pools are being utilized described by the term fill rates. The registration system tracks the lesson capacity and some owner/operators have people counters to track daily attendance. The success of the pool is generally measured by use in three categories;

1. lesson registration against lesson capacity,
2. public and lane swim attendance against capacity, and
3. rental use as compared to the rental hours available.

A pool with a 75% plus fill rate is considered well utilized considering lower use in non prime time hours.