Engineering TechA Q & A Forum devoted to Engineering Issues that don't necessarily fall into Aircooled or Watercooled Tech. Got a problem? Or an engineering question? Even a buildings or property engineering question? Then ask in here. Please, no 'For Sale' or 'Want To Buy' ads, plugs for your 'business', links to 'for sale' ads or Ebay links to your (or your mate's) auction (use the VZi 'Classifieds' section) - this also includes thinly veiled 'What's My Car Worth?' threads and "Who Can Sell Me A . . ." posts.