Hello everyone, I have live in South Alabama and have a St. Augustine lawn. Back a couple of years ago we had to have our fill lines replaced in the back yard and now the grass looks good but I have some dips that I would like to get rid of. The dips are probably 3 inches lower than the rest of the yard. It makes it hard not to scalp the grass when I cut it even though I cut it at 4 inches. Thanks alot.