My Flex Daily is watering way too infrequently. I’ve been setting-up and tweaking my Rachio for two months now and I’m at my “wit’s end”. In short I evolved from manual to Flex Daily schedules and tuned the parameters using the best advice from:
and I’m confident that the output per run is correct (tested empirically by putting my drip lines in a bucket and measuring the output) yet the frequency of runs is way too infrequent. As an example from one zone, based on ~6 years of gardening experience and a soil moisture meter, irrigation should be running about every 3-4 days, yet the Flex Daily schedule wants to run every 20 days. This is obviously a huge disparity.
Nevertheless, I decided to trust the Rachio and went on vacation because I figured that I’m only gone for 10 days, it’s September, and most of my landscaping is either mature or semi-drought-tolerant, so how bad can it be? Well, I came back and my lemon tree is dead, so needless to say my wife and I are pretty upset and she’s yelling at me to “fix it” but I’m out of time to tinker on my own and could really use some help.
Diving through the discussions it seems that increasing the crop coefficient is the suggested way to increase watering frequency; however, manual crop coefficient calculation from the last above link suggests a value of 0.30 for immature citrus in my location yet the default for the zone was 0.75, so something just seems wrong. What should I do? I’m thinking despite confidence in my soil type setting to lower Available Water, but perhaps that will just shorten the watering duration that I already worked so hard to get right?
So going back to the point that I’m out of time to tinker on my own because things are dying, I’m looking for a multiplier to a parameter that will simply get the watering frequency in-line with my expectations for this time of year as a better starting point and to stop my landscaping from dying, and then I can refine the settings over time.
Any advice appreciated. Thanks!