Originally Posted by GregW / Oregon
And why do you think the crimps are bad? You would intuitively think so, but from my architectural practice I know ductwork can be flattened for a short distance, to go under a beam for instance, with negligible loss in performance.
Well it just looks like it really inhibits good flow. I mean if you take a straw and bend it slightly where it flattens out and try to suck some soda out of the can, generally requires a bit more suction.
But then what do i know, but the piping would of been a good piece of mind, especially for the price of the thing