I have a Carbatec dusty, http://www.carbatec.com.au/machinery...sman-extractor and am considering upgrading the workshop ducting. It appears that I am able to connect 6" ducting directly to the dusty, however, I note that the flexible hose between the filter section and the fan/motor assembly is only 5 inches. Am I then restricted to using 5" ducting for the main line?
Zelk