Quote from Scott:
"If you want to right/write it up that's up to you, but I'm with Eric. It would not make my report. Now you also have about a 90% chance that the motor is burned out on that power vent, they only last a few years."

I have to agree with Mike Schulz's assessment that since that vent stack is higher than the mushroom cap, It doesen't really pose a problem.

Rich