Dust Collection Noise

[matthew lippel]

Thanks everyone for their replies. I'll upgrade the 8" duct to 10" and add some more gentle curves. I really need to get back to work and this thing has been a time sink.

Yes chris I looked at the link. Read it all. Thanks again.

As for the enclosure I realized staggered beam construction is best but I'm not tearing down the structure I already built especially since desirable results are achievable. I got in down to 60 db with the 8" duct for a day. Unfortunately I made some adjustments and I can't seem to replicate my previous success. That said I think targeting the exhaust is the way to go.

[Bill Jobe]

Ok, another suggestion. Since many of us will have a few feet setback ordinances, why not stack bails of straw around the exhaust setup?

[matthew lippel]

Sorry. I had a long weekend. Stepping away sometimes is the best medicine. I created some gentle S's and used 10" insulated ducting (R8). It hovers at about 60 db. Quieter than my neighbor's dryer vent. We're al good. Thanks everyone. Also it has had no detectable effect on suction. Thanks again!