Here's a snippet from the above link that I didn't know.

"This system (pipes) works on the principle that beaver build dams in response to the sound of running water. They may hear the water going through this pipe but cannot locate the leak source."

__________________
Chad
2013 Jeep Unlimited Rubicon
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL