Thanks, Dave, for the reference source and your prompt reply. Bob is a great person to get information from and I have watched his posts constantly. He has been an invaluable resource to me.

But I am also looking for some more direct responses to my questions, including any recent information on kits, a quick reference "chart" or guide on the readings I should look for and try to attain, the meaning behind temperature readings, and any suggestions besides a lab on the pipe effluent. I'm hoping some additional members, including Bob, can chime in.