It is normal for a pool to lose some water due to evaporation and splashing. Still, the amount of water loss can vary depending on several factors, such as the climate, wind, pool temperature, and the amount of use. A general rule of thumb is that a pool can lose up to 1/4 inch of water daily due to evaporation. This can vary depending on the size of the pool and the environmental conditions.

You can perform a simple bucket test to determine if your pool is losing an abnormal amount of water. Here’s how to do it:

1. Fill a bucket with water and place it on the first step of the pool.
2. Mark the water level on the inside and outside of the bucket.
3. Wait 24 hours and then compare the water level inside and outside the bucket. If the water level outside the bucket has dropped more than the water level inside the bucket, this indicates that the pool is losing more water than is normal due to evaporation.

If you find that your pool is losing more water than is normal, it may be due to a leak. Address any leaks immediately to prevent further damage and increased water loss.