I am in the process of designing my dripping system for my beach house in FL. I am thinking about using 2 Pixies and several Whisperers. I have several questions: 1) What happens when the WIFI is down? Does Pixie turn watering off/on on its own? 2) Does Pixie skip a watering cycle when raining? 3) Are the Whisperers connected to the Pixie and App in that the humidity information guides the amount and frequency of watering? 4) What is the recommended soil humidity for new planted palm trees? Thanks, Markus