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Carefully place the removed pavers back onto the newly leveled and compacted sand base, following the original pattern if applicable. Start from one edge of the repaired section and work your way across. Use a rubber mallet to gently tap each paver into place, seating it firmly into the sand and ensuring it is flush with the surrounding pavers and the desired patio height. Continuously check the level of the installed pavers using a long level, placing it across multiple pavers to confirm an even surface and making sure there are no high or low spots. Use a flathead screwdriver or the trowel to make minor adjustments to the sand underneath individual pavers if they are not perfectly aligned or level.