You have to be careful that the soil they sell in home depot in bags is not potting soil which would be great for growing grass in but very spongy and would drain water much too fast for surrounding soil. You would also want to make sure that what you are buying doesn't have a lot of chipped wood and debris like that in there although some types of organic matter is desired. A local mulch or landscape material place would be a better place to look.

Gotcha! Thanks for making me aware. :)

Is this the area you mean?
{{gwi:95185}}

Try this
Zones of Soil

I had sod put in last May. After the sod began to establish, I noticed low points throughout my lawn. It was especially noticable when I mowed because I would scalp some areas and others were untouched. I chose to use sand from Home Depot. Yes, I used play sand like many forum users would say not to use. Bottom line- the areas flattened out nicely. I just caution that you attempt any leveling slowly and methodically. Place small piles throughout the low areas and rake them level with a leaf rake. Water really helped in making the sand level. I have Bermuda and it grew through the sand with no problem. If you really want to be a perfectionist, mix in some top soil with the sand, that should serve as a satisfactory blend and feed the lawn at the same time. Now all you will have to worry about hopefully is gophers! On to my question for the group...........Good luck, Low spots!

Right but the OP's grass type is not bermuda.