We have a negative edge pool so I can't do the bucket test to see the difference between evaporation and leaks.
There is a blue tank in the pump room that holds 3000l of watr, this balances out the water in the main pool so I turned off the water autofill on this blue tank and measure dhow much water it lost over 2 days.
It seems to have lost 10cm.
Tank is 1.3m x 1.6m wide so I figured that was about 0.2m3 over 2 days or 200 litres.
This seems like a lot to evaopration doesn't it? Outside temps are about 17 degrees during the day and sunny.
In the pump room, I saw a whole load of calcium deposits roughly from where the bottom of the pool is and the outside wall of the pool seems to have a wet patch aea about 5cmx5cm.