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Posted by Highfire on November 17, 2003 at 06:21:52:
In Reply to: Re: Warming the worms posted by Tony Conner on November 16, 2003 at 17:36:43:
: I know that for locating steam leaks under pavement, one of the most reliable ways is just to go for a walk or drive in a light rain. Leaks appear as dry spots. In the winter, lack of snow cover over leaks works well too.
Thanks Tony. We have tried that. Even though the lines are insulated when it is cold the ground above the entire runs remains dry. There are no obvious spots that exhibit steam rising to indicate leaks however. We did find several valves leaking by and replaced those. All of the lines were replaced 8yrs ago with more new runs added last year. The newest lines (last yr.) have a conductivty leak detection system though.