Hi all -
Because of the drought here in California (I'm in Silicon Valley), I'd like to cut our water usage down as much as possible. The Iro has been a big improvement over our old sprinkler system, so thanks!
Before converting the yard to xeriscape, I'd like to see if I can scale back the watering even more since the yard is looking pretty lush and the soil is damper than I think it needs to be. What's the best way to further cut water usage while still keeping seasonal adjustments, etc?
My first steps:
* I did a rough irrigation audit to estimate true flow rates and distribution uniformity. I scattered around 5 bowls of known top diameter in each zone, weighed the water in each after running the sprinkler for 10 minutes, and used that to estimate cubic inches of water per square inch of lawn per hour. I estimated DU for each zone as the minimum # of cubic inches / the average # of cubic inches.
* I measured the lawn to get accurate square footages into the app
I discovered that the default flow rates were pretty close to correct (nice!), but the efficiency looks overly pessimistic, so I've increased that a bit.
I figure the next step is to experiment with increasing the allowed depletion percentages. Any suggestions there? Is there anything else I should try?
PS I was very pleased to discover the water hammer minimization. I'm looking forward to not being awakened by the sprinkler system on weekends!