thank you. I live in Columbia SC. Our soil is very sandy and most neighbors water the lawn every day during the summer so that is what I have been doing. (i am new to the south, having moved from Connecticut). In fact, some people water twice a day. We have had very little rain this summer. I usually water in the morning for 30 minutes. I applied Lesco 15-0-15 in April after the lawn greened up. As for mowing, there are three lower settings and two higher settings. The lawn does look greener several days after mowing. I am beginning to think that it is a thatch issue because of too much water and am thinking of cutting back. I can attach additional pictures.

I don't think its a thatch issue. I think you need to check the sharpness of your lawn mower blades. When they get dull, te tear the leaves instead of cut. These tears then turn brown. After a few days they will heal and green back up.

As far as watering, you should never have to water an established lawn daily. The best watering practice is deep and infrequent. What does that mean? It's different for everyone. Many will tell you 1" all at once, weekly with temps in the 90s, biweekly with temps in the 80s. This is a good place to start, but you should really learn to read your lawn to tell when it's thirsty. For example, in our recent stretch of 100+ degree days, I only had to water my bermuda 1" every 10 days or so. The point of this is to establish deep rooted plants that can survive extended periods of no moisture without dying. Hope this helps you.

Most people like centipede because it grows best when mowed very low once a month, watered once a month, and fertilized every other year. It's the lowest maintenance of the traditional turf grasses. So you're really going crazy with it. You could be killing it with kindness.

Your pictures are out of focus and too far away to see anything. Usually when you click on the picture it enlarges. Your pictures enshrink. When you upload, upload the entire picture, don't make it smaller first. 800x600 is a minimum size. Her's a sample picture from 3 inches away...

thank you all for your responses. It seems that I have been over watering by a lot based on your feedback. I am sorry that I can not take better pictures of the lawn. But i did take a dethatching rake to a portion of the lawn and managed to bring up quite a bit of thatch. This makes sense to me based on the over watering. i did not want to dethatch the whole lawn because everything I have read says to do it in the spring. What can I do now. Obviously I have stopped watering, but any other suggestions.