Hey all - I have what I believe to be French drains near by back patio. They are just 2 separate 12 inch square green plastic grates right in the grass. There is a black box in the ground, and 8 inch corregated black piping runs off about 75-100 feet to a drainage ditch in my backyard. The appear to work great.
However, they are in a shady spot, so the grass never really comes in too well in this area. And it's in a hard spot to mow. So rather than fight that, Ifigured I could kill the grass and just mulch the area. But is there any reason why I might not want to do this?