On 9/16/2013 8:44 AM, Joe wrote:
I noticed some black flexible ribbed hose used in a dust collection accessories ad at http://www.rockler.com/product.cfm?page=11312&rrt=1 .

I tried some stuff that looks like it that is sold as drainage hose. It is similar to http://www.lowes.com/pd_259812-62059...nch&facetInfo= or http://www.lowes.com/pd_24136-124-04...nch&facetInfo= .

When used on a dust collector, the moving air across the ribs makes it sound like there's a steamboat whistle in the shop.

I've tried different lengths and flows to get away from the resonant frequency with no luck. It only changes pitch.

Has anyone had any luck with this stuff? The price on the clear stuff is outrageous and the wire makes it harder to work with. The black stuff curves easily and neither collapses nor shrinks under vacuum.


For long runs, I use the thick cardboard carpet tubes since they are
also 4" in diameter. I visited my local carpet store and they gave them
to me for free. They are 10 to 12ft in length and easy to cut. The
carpet store throws them away.

I connect the tubes with the dust collection elbows and other misc
connections required for each tool. The only flexible hose I use are for
my Router table and table saw because they are on wheels.