D.W.FAAMER
PARANOID GARDENER
- Joined
- Jan 10, 2009
- Messages
- 116
- Reaction score
- 36
bought a new 424cfm inline exhaust fan. problem is that venting the 6 inch pipe out a wall through a 4 inch hole at the end sealed around hole creates turbulance,in other words it sounds like a 747 warming up for take-off when it's on medium(speed controller).on high i'd rival a shuttle lift off.what can i do? make hole full 6 inches cutting down resistance,and trying to conceal a 6 inch hole. or what? help fast.