How to Determine if Your Pool is Leaking Generally speaking, pools lose approximately ¼” of water per 24-hour period* on average due to evaporation, although this can vary due to factors such as humidity, wind, air temperature, and water temperature. With that being said, pools CAN lose up to ½” of water per 24-hour period* due to evaporation if the right atmospheric conditions … [Read more...] about Is Your Pool Leaking?