If you have ever wondered what the normal rate of evaporation is vs. water loss in your swimming pool there are a few online resources that can help. Here is one evaporation rate calculator that can help the geekier of our pool owners determine if the loss is a leak, or evaporation: https://evaporation-calculator.cemstone.net/
Anderson Manufacturing Evaporation Estimator: https://www.leaktools.com/evaporation-estimator.html