WOW TOM! WTG, I'm glad to see this topic come to life! Your absolutely correct when you mention the phrase,"knowledge is power" I'm sure you can take the guesswork out of alot of posters concerns. There couldn't be a better man for the job then you Tomh. Congratulations and I'll be sure to visit this topic with enthusiasm! Plumber Tom/Moderator/www.bobvila.com/BBS/Plumbing