There are several ways of aeration, and we adopted coring.
We use a hand tiner, which lifts out cores of grass and soil 1.0cm wide. Before coring, I prepared sand for filling the holes in order to improve drainage. Sea sand I bought at DIY store contained small broken shells and a bit larger grains of sand. So I put the sand through a sieve to get rid of them. The sand was filled in a plastic bottle and a sharp‐pointed cap with a small hole at the top was set.
The hand tiner removes a core of grass, thatch, and soil, making a series of holes. Remove the cores and fill the holes with sand to prevent them from closing and to allow air and water into the lawn.
|Cylindrical soil comes up from the metal tube of a hand tiner.|
|Cylindrical holes were filled with sand.|
|After filling sand|
|Lifted cores of clayey soil|
|The lawn after coring|