Yeah, I came to this conclusion pretty quickly today during my test run. Took about 3 seconds. Now why would HD sell these things in humid climates! I'm going to use the misters to keep the moss nice and green on my deteriorating patio under the spruces. They will work great. The fluffballs have got lots of shade and water, frozen jugs, and a dusting 'pit' they like to hang out in - I shaded that with a beach umbrella today. I'm afraid to put a fan outside in case some rain comes through (they've got cover), but I keep two going in the coop at night. BTW I also bought a special hose for the misters that's for use on boats and is drinking water safe. I guess regular hoses leach BPA, lead and more...just something to think about. But, I don't have a boat, and I don't care if my moss gets a little contaminated, so that was just a waste of money!