The tar ‘pits’
I removed the old copper, pushed the new tubing through the floor and into the old saddle valve, and then gave it a try. Wow! Everything worked just fine (and on the first try). Suddenly I heard our cat dashing across the floor.
I rushed into the kitchen and saw water spraying everywhere. After shutting off the water, I examined the tubing and saw that it was covered with tiny cat tooth marks. I immediately decided that I like copper better! — Bob Dobs