Originally Posted by
Andrew Seemann
If you've got a 2 1/2 inlet and want to go PVC, 3" Schedule 40 PVC sounds like it would probably do the trick.
Martin has a commercial shop...and the friendly OSHA folks have opinions on materials that can be used for plumbing dust collection, air, etc. He may or may not be able to execute on that suggestion.
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The most expensive tool is the one you buy "cheaply" and often...