"Sorry to be so blunt, but that's my nature"
Yeah, RAH, expressing your opinion is kind of the idea in a forum, that's how we learn from each other. And there are certainly varied opinions in this thread about the use of an overflow pipe in a pond the size I'm building (3 are OK without the pipe and 2 are definitely for the pipe). One thing for sure, when I read the forums on dam repairs I see that my contractor wasn't far off the mark ...there's an awful lot of people dealing with leaking and collapsed overflow pipes. I'll continue to do my research and see what other posts show up here.
Thanks guys....