Fist some vitals: Clay soil, Fescue mix, southwest Ohio. Lawn gets lots of sun. Did a soil test and found my soil has a pH of 8. I also discovered my nitrogen levels are low. Now as far as I know the pH should be around 6 or 7. This tells me I need to apply some Aluminum Sulfate. However, as I understand it applying Aluminum Sulfate can be tricky. Too much and it will bleach the lawn. I'm a little hesitant to go out and grab a couple bags considering it's about time for me to put down Scotts Step 2. Will applying both of these be too much for my lawn to handle at once? Or any tips on how much Aluminum Sulfate I should apply?