Cleaning enclosed ramps and tubes can be time consuming and
difficult. Instead of taking apart these items, I cheat a little. I take a
clean old piece of t-shirt and moisten in my favorite cleaner. I then wrap
this over a piece of flexible hose, and run this through the tubes and
ramps. I then follow this with a second run with a dry cotton cloth. The
hose I use came from a old bug sprayer and is small enough to use in the
tubes, bends easily in turns but is stiff enough to push through.