First, a little backround... I have around around 1.5 acres that I have been trying to care for myself for a couple of years. I have done all of the typical stuff, spring pre-emergent, weed and feed and fall winterizers. The house was built in 2004 and the builder put down some crappy seed that never really took. So, I put down some top soil and re-seeded with what I think was a good tall fescue mix. I have also plug aerated the last 2 seasons in the fall. Every The first year after aerating my grass looked great! Well the as soon as it got hot, I got brown patch and it destroyed my lawn. At the time, I was dragging a hose all around the yard. It took up a lot of my time and was a pain. I often had to water late in the evening just to make sure it was watered. I thought that the primary reason the lawn developed brown patch was because of my watering schedule. So, waited until fall and reseeded again. This spring I had an irrigation system installed. I thought my problems were solved? Not!! I noticed the brown patch coming on when the temps started to rise so I started to apply fungacide from "Bayer" at a curative rate and it seemed to hold it off, but it didn't stop it. Then, the recent 100+ temps hit a few weeks ago (while I was on vacation) and my grass took another hit. Now, it looks like half of my grass is dead and the other half has gone dormant and weeds have popped up all over the place? I mean, I still have green grass, but it looks nothing like it did before. I started watering it more frequently and it appears to be trying to come back and it looks it may be getting green again. The problem is I am having a gathering at my house next weekend and I was wondfering if anyone thinks if I hired a professional to come in they could get my yard to green up again in that short amount of time, or is there something I could do to get it there? Or should I simply call it a seaon and start over again in the fall? Oh, I have always mulched, not bagged my grass and it is always cut at the highest setting. My watering schedule is typically set at M,W,F for 25 minutes in each zone. It starts at 3:00am and finishes around 9:00am. I have well water. I just recieved the soil test, but I have not put the soil in the bag to get tested yet. I know it's a lot and I may have been rambling, but I just want nice grass again! I really appreciate any info/advice that anyone can provide.