All my holes had been about an inch from the bottom so there was usually an inch of water sitting down inside the jug. Sitting water can bring in mosquitoes. Jess suggests this suggestion: When she does this in her raised vegetable yard, she leaves the caps on and unscrew https://dogdogtoys53837.bloggazzo.com/29149360/the-single-best-strategy-to-use-for-plant-feeder-water