I have been suspicious of a leak for a while in my brand new gunite pool. I have been having to run the fill line for 60 to 70 minutes every other day to keep the water level halfway up the tile.
Here are the results of the bucket test I recently ran. PB is saying this water loss is normal. I disagree. Let me know your thoughts.
12 hours, no pump running = 1/4" water loss
12 hours with pump running, no water features, no swimming = 1/16" water loss
12 hours, no pump running = 1/8" water loss
Total loss in bucket (36 hours) = 5/16" water
Total loss in pool (36 hours) = 3/4" of water
Difference between bucket and pool in 36 hours = 7/16" (about 1/2" difference)
Pool seems to lose most water overnight compared to when the pump is running.