I have a couple of acres of "lawn" that needs some help. I had a septic system re-done and have some spots that got a little washed out before the grass seed took hold. The ground is a little lumpy now, and I think I want to spread a little topsoil around to fill the low spots/holes and reseed. Is this called topdressing? Anyway I think that's what I need to do. I have a FEL to move topsoil, but is there an easy way to fill the bare spots without destroying the existing grass? I was thinking that I'm going to have to drop small piles and hand rake. Is a landscape rake too aggressive for this? Or am I wasting my time with this patch job?