On Sun, 7 Jan 2007 05:45:06 -0500, "Rick" wrote:

"HeyBub" wrote in message
...
| Any reason one can't use 4" PVC sewer pipe for dryer exhaust piping?


it is illegal
reason enough


For what it's worth, Harvel Plastics makes
a CPVC duct, but I don't think it comes as small as
4" ID.