Bob wrote:
HeyBub wrote:
Any reason one can't use 4" PVC sewer pipe for dryer exhaust piping?

A potential problem is that the PVC pipe will not heat up enough to
evaporate water that causes lint to cling to the pipe. Lint buildup
would be a major concern.

Good point. So one should insulate the dryer vent pipe, irrespective of the
pipe's composition.

Hmm. If you do that, who's to know what's under the insulation?

Insulating the vent pipe would make the technique of de-linting using a
propane torch easier too.

Thanks for the suggestion.