The answer to 'how to maintain aeration' is to aerate your lawn regularly, typically once or twice a year. Aeration involves punching small holes in the soil to allow air, water, and nutrients to penetrate the roots more effectively. This helps reduce soil compaction, improve drainage, and encourage healthy grass growth.
To aerate your lawn, you can use a core aerator machine that removes small plugs of soil. This is best done when the soil is moist but not waterlogged, usually in the spring or fall. After aeration, you can overseed your lawn to help fill in any bare spots. Proper mowing, watering, and fertilizing will also help maintain the benefits of aeration.