Reply by Carl10

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Posted on Jet DC1100 Transformation ***COMPLETED***

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115 posts in 850 days

#1 posted 01-30-2018 07:36 PM

Nice setup. A couple of suggestions. As mentioned above the blower and SDD are spinning in opposite directions. This causes turbulence, noise and reduced efficiency. Someone in the Thein forum bent some plastic I believe, that was so tight it was a friction fit, down the throat of the SDD. This acted as an air straightener.

It quieted the system and improved airflow. I had the same situation with an old Oneida cyclone, where I made a X out of flat duct material and taped it to the vortex (center tube). It was noticeably quieter and I measured ~ 8% airflow improvement. The other suggestion is on your output, the less restriction the better. Necking down the output to 4” limits the input flow to the same amount, so going bigger will be better. Putting a 5 to 6” adapter right at the blower output and simply use cheap big box 6” duct to the outside wall. Going to 4” and having the sharp bends in flex hose is limiting your overall system performance.

Hope this helps and keep us posted on your progress!


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