Hi, just do the bucket test as fallow: 1-Fill a bucket with the pool water , no matter which size, place it near the pool, on a +- level ground. 2- MAKE SURE it receive he same amount of sun light as the pool does. 3- Mark the water level on the pool and on the bucket. 4- Next day, or 2 days, check both, pool and the bucket, if both went down the same amount, you have no leaks. If you do have leaks, try a food die on a small bottle, with a small hole on the cap, slowly walk around in the pool, and any suspicious spots go near it and let out the die and see if it goes towards the spot's. Moist or damp ground around the pool wall not always indicate leaks. I had it this year, due to wall condensation, also I lost water at the same week due to evaporation. But i'm in NY and we have a very mild winter, early spike temperatures, last couple weeks of April hit 70*s and 80*s, while the pool water was around 50*s. Good luck!