When is the right time to pull out the tile leveler?

1, tile paving should leave a gap of about 2mm between tiles.

2. Insert the tile leveler into the gap to compact the tile.

3. Rotate the tile leveler by 90 degrees so that it can be stuck at the bottom. Adjust the adjusting cover of the leveler with a wrench to keep it horizontal, and take out the leveler after five hours.