It's a single membrane diffuser that is attached to a weight in front of the feeder. When the diffuser is working, it floats up off the bottom to the length of the rope. When it's off, it sinks back down and doesn't interfere with summertime fishing.
If you go to Google Earth, look at the latest image. It has the pier in it.
Scott,
I've never heard of them being anchored off the bottom. Is that an original idea or am I just out of the loop?
