Posted 1/6/2019 15:50 (#7224935 - in reply to #7224751) Subject: RE: Bulk bin downspout drop tubes
SC MN
I use a product I get from our local Anderson Crane store in Mankato, MN. It might be called air or vacuum duct, but it has a spring steel spiral inside a flexible rubber, pvc outer shell. Kind of like a giant vacuum hose. I use a 3" size which fits on the discharge of my 4" augers. Its fairly flexible, but does get kinda stiff in cold weather.