I'm a 60 year old lady with "the nicest lawn in the neighborhood". I have my lawn cut every Friday by a lawn service at 3.5 in. just like Dick Crum says. You do my apps. I call you about my lawn turning brown, especially on my south west slope in my front yard. I do have 1 sprinkler to water my .5 acre lawn. How do you explain heat stress, water requirements & scheduals, fungus activity on stressed lawns, not mowing every week ect.? Do you even try?