Reply by PurpLev

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Posted on DC questions

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8536 posts in 3672 days

#1 posted 08-15-2013 06:37 PM

  • metal is preferred because it has less friction (air and debris), but if PVC is only available to you or more affordable, it will work just fine.
  • no need for double wall. the thinner walled pipes will work just fine – you are not creating a vacuum here, just passing a lot of air through them (think of straw – as thin as it’s walls are – as long as it’s open on both sides it will not collapse regardless of how much air you blow/suck through it)
  • no you do not NEED to ground PVC, but you CAN if you encounter static shocks often when working near it.. for starters I would stay away from grounding and adding interference to the airflow.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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