Air in the Cali desert (Palm Springs) is dry, no problem there. Although you hear that nights in the desert are cool, they can stay in the 80-90s, which seems cool after 105-110 during the day. They are arc sprays but since I have not purchased them yet I can always go to more of a spray-type if you think it is better - max six. Water is not terribly expensive compared to other places, so I am fine with this; I will have a water auto-leveler. Electricity, not so cheap. Hate to think that I will have a heater during the winter and a cooler for the summer, sort of defeats the idea of living in a resort paradise with great weather.