What I wonder is why it thinned out in the first place. That stuff spreads voraciously by rhizomes if it is adequately fert and irrigated. Figuring out why it thinned out seems like job #1, not the overseed. Otherwise, you may soon have the same problem. Sounds like it may have been simple drought stress, given your irrigation restrictions. It may be that Bermuda is not a good choice in your area. It will survive, but it may not look too good when it gets dry out where you are.
Last edited by maynardGkeynes; 05-08-2013 at 10:38 AM.