I agree with George. I have 3 Aqua Pro feeders. They have not clogged or jammed in 8 feeder years of use. They stay out most of the year (rain , sleet , hurricanes , heat and humidity) with little or no maintenance. One stayed operational through Katrina. I have noticed that the one Greg got for me has a different solar panel and its charge does not last as long as the old model solar panel. But the charge still lasts for 3 weeks. Moisture in your feed will clog any feeder that I am aware of.