Aeration & sand
A friend has a 1/6 acre yard that has a lot of clay in it and water absorption is a problem. There is only a small (~1/4" - 1/2" tops) layer of topsoil in places and grass obviously isn't growing well. I know the best remedy would be to bring in a truckload of topsoil & spread but this is not cost feasible for them.
They mentioned putting sand down then aerating 3 times to get it into the soil/clay/backfill from their house. What do you think about this suggestion and would you recommend a core or spike aerator? In VA temps are in the mid-80s now and it's pretty dry. When is a good time to aerate? Finally, how much & what kind of sand should we put down? Thanks in advance.