[MidMOTraveler]

Steve a quick help not the fix is just pop off the vent covers. This allows so much more air flow. They are kinda hard to get off the first time and you’ll think it going to break but will come off. Just pull down and you’ll notice that some spots move some don’t . Put your fingers on either side and pry down.
As for the pvc in the return air ducts take the cover and filter out then take the plastic mounting down.
Insert a pvc pipe and turn as you do this the return duct only runs cross ways, push to the sides carefully so as not to damage the duct. Do this to both sides so 8 pieces of pipe are needed.
I wish we could post pictures from I phones on this site, don’t have a computer.