This is a simple method of leak detection is done by marking water levels on a bucket with tape or a marker. To do this, use any general purpose bucket and fill it fairly close to the top with pool water. If the water level in the bucket is too low, wind won’t impact water in the bucket the same way it does in the pool, so results may vary. Then place the bucket in the pool on the steps or whatever shelf you may have available so that a majority of the bucket is submerged.
You can read more here about this test and other tips on finding a leak in your pool.
