On 26 Dec 2005 21:34:22 -0800, wrote:

(e) Be sure to test safety systems on a regular schedule --
I shudder to think what would have happened if that relief
valve had not tripped when it did. I have flipped the test lever
in the past when I thought of it, but will be formally rigorous
about it in future.

See this explosion:

http://www.waterheaterblast.com/index.html

Oren
"My doctor says I have a malformed public-duty gland
and a natural deficiency in moral fiber, and that I am therefore
excused from saving Universes."