I'm on my third season using my Fly Killer Kover. I found it online, bought two, then recommended they advertise in Stockman Grass Farmer. It worked great the first year, not as good last year. They told me to clean the reservoir, helped a bit. This year it hasn't been working well, also some of the rubber around the reservoir fell apart. I just got off the phone, they are sending me the replacement rubber parts for free. They recommended cleaning out the reservoir and using an "aluminized paint" because it will start to corrode. Also, they recommended I take and clean the felt with a pressure washer. I'll be doing that tomorrow and hopefully it does the trick. When it works, it works great, just need to do some cleaning before it goes into use for the season I think. I bought mine as a retrofit for a Brower feeder. I use a piece of rope tied into a "Y" to move/drag the feeder. The two ends of the "Y" have a knot. The other end is a loop. I put the knots in the stake notches and pull on the loop end. I have gone over some pretty rough terrain.