First, remove any dead grass using a dethatcher, which will allow for water, air, and nutrients to penetrate into the soil.
Next, mow the grass to remove dead grass and any other debris left from the previous step.
Next, aerate the grass to decompress the lawn. This will allow nutrients and chemicals to reach the soil.
Use a spreader to apply overseed all over the grass. *Wait two weeks between this step and the next step to allow the grass to grow.
Use the spread to put nitrogen across the grass to promote growth.
Add fertilizer to the grass to protect the grass' roots and prevent disease.
Add soil mixture to the grass and turn on sprinklers.
Mow the lawn to finish off the process.