How much water are you adding a week? Evap rates can vary widely. It depends on pool surface area, pool temp, air temp, humidity, wind, sunny/cloudy. Dry, windy days with water warmer than air will give the fastest rates. Normal can be around 1/4 - 1/3 inch per day on average. Dry desert
When I was in Columbus Ohio, I lost less than 1/4” a day on average. I covered my pool at night to lessen evaporation.
You can do a "bucket test" where you place a 5 gallon bucket of water, almost full and measure how it compares to water loss in the pool. Both should loose the same amount in theory. Unless you have a lot of splashout in the pool or your dog drinks from the bucket, lol.
Put some masking tape right at water level. wait 24-48 hours and check the levels of both. They should have both dropped by the same amount. If the pool is lower, then you have a leak somewhere.
