Re: Regrading an Existing Lawn
Add compost or good quality topsoil to the low spots and rake it in really good to get it down to the root level. You can probably get about 1/2" or so deep, then let it sit for a week or two and do it again. You won't choke out the existing grass by doing it in this manner.
I use compost and manure to fertilize my lawn and this is the way that I apply it, also helping to control low spots. Been doing it this way for years and have experienced no issues.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!