On Jun 16, 3:13*pm, AKT wrote:
What's the best way to aerate a small 30'x40' lawn without damaging
grass?

Assuming you need aeration plunge a spading fork into the soil full
depth and give it a wiggle. Repeat about every 8". No need to do it
all in one day.
Here it's the eathworm's job, have yours been decimated by turf grass
chemicals?