I usually just browse pictures and all the useful information on here. Looking at doing my own lawn. I purchased the house where the owner put sod in the front yard but didn't prep the ground or maintain it. There is humps and low spots everywhere, lines where the sod shrunk from dieing, can pull sod up by house, etc. The ground underneath is somewhat rocky as well as the backyard which is just full of weeds. I want to put in new irrigation and new sod in both the front and back yard. I'm looking for ideas on what to do. I had planned on spraying weed killer (stuff we use on farm just lighter dose) and killing sod and weeds everywhere. Now I would want to strip the old sod correct, not just till it in. Then take a harley rake to the whole yard to clean it up. And finally top dress with new topsoil. How deep would you want new top soil? Then finally get irrigation put in and lay down the sod afterwards or seed. Thanks for any input or suggestions.