At 02:30 12 August 2005, wrote:
Factory installed system was just a hard plastic line
installed under
the seat pan that exited in front of the gear door
and you connected to
it through a hole in the seat pan. I put an electrical
motor in line
with a push button to clear all the urine from the
system since there
is a low spot in the line under the seat pan. Also
helps when flushing
out the line after landing with clean water.

I shudder to think might happen if you turn on the
motor before detaching yourself from the tube...