Quote Originally Posted by Buggerluggs View Post
In my case the tube was intact, had not contacted anything, just fatigue cracked at the point where it goes into the seal housing. I can see this happening as a result of the design. The copper tube is quite long, held rigid at one end then clamped into a fitting at the other with an 'o' ring. This allows the tube to vibrate and copper has a tendency to fatigue. The solution is to use steel piping but this is not as flexible and installation would be a problem.
Better still... i full loop, like we do in refrigeration......