Yeah, I struggled with that. There's a Web Soil Survey mapping site (http://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm) that sure enough reports my area as "Antho sandy loam". I had trouble believing some of the watering durations would work on my yard with the settings of sandy loam. I have a moderate slope to my front yard, and I start to get runoff at about the 6 minute mark. Here are my durations/cycles with Sandy Loam vs. Clay
With 'Moderate' slope and 'Sandy Loam'
Cycle duration 12 min, cycle soak 2.5 hrs, Repeats 2 times, every 4 days
With 'Moderate' slope and 'Clay'
Cycle duration 4 min, cycle soak 30 mins, repeats 6 times, every 5 days
I ended up going with 'Clay' to get me under that 6 minute mark, but looking at it 'Sandy Loam' with 'Steep' is a better option?
Cycle duration 8 min, cycle soak 30 mins, repeats 3X, every 4 days
I switched over to 'Sandy Loam' and I'll watch the runoff to see how bad it is at 8 minutes, but I do like theslightly shorter interval. Thanks for taking the time to post as this was really helpful.
Would you mind sharing what your existing schedule is for trees & shrubs ? I'm a bit stuck on that part and would love additional input from others in our area.