A lot of you guys around this forum share more valuable advice than I can get from my landscapers or at the local Home Depot. I’m hoping you can offer some of your expertise to see if my yard irrigation efficiency can be improved. I have a small lawn in Arizona, on a slope growing Bermuda. What is making my efficiency be so low is likely the non-rectangular layout. This image shows the sprinklers numbered in RED, and the Orbit catch cups are shown in YELLOW in with the milliliters accumulated in a 10min test.
Plugging them into the Orbit online calculator leads to about a 56% uniformity, which I assume means a 56% efficiency in the Rachio settings for Flex. You can see that the biggest issue is likely that the are at the top, especially in the top-right part of the yard where the curve is have the weakest coverage. Where the spray areas all overlap in the center areas, the water accumulated as about 3 times the weaker areas. I’m guessing that adding or moving heads would make an improvement, but that isn’t an option right now due to the rip up involved. Could I replace or adjust some of the nozzles in some areas to improve the coverage. Right now they are all slightly over-spraying to the closes edges of the lawn, but as far as I know that’s the best that I can do. Any advice or ideas would be greatly appreciated!