OneReef
Reef Guru
I think the fan is a good idea, but might be better to go ahead and vent that air outside. That's quite a bit of warm, moist air you'll be pushing into your attic. Probably would never be an issue, but could possibly cause problems. Shelby County changed their code about 5 years ago regarding bath fans being vented into attics due to mold issues. Just something to consider.
Thanks Ryan, I had already come across similar info on mold when I researched doing this. My ultimate goal is the attach plastic dryer vent hose to the end of the PVC pipe and run it to an outlet out of the attic