Cleaning AC ducts?

drsteve wrote:

ScottG wrote:
One of my off-season chores is to clean our trailers AC ducts.
They have an endless source of styrofoam bits that shower the living room every time the AC is turned on after the TT has been moved.
Anyone have a clever idea of what to use or how to do it?

All I can think of is a shop-vac and a brush on a stick..

The styrofoam bits are a sign that mice have chewed the styrofoam intake/exhaust divider in the AC unit. Pull the ceiling grill and see how much damage has been done. You may need to replace some of it.