It's a safe bet in this day and age that a plumbing installation at least meets code requirements and will be sound and adequate. With some management and extra thought, though, we can do better than mere adequacy. A plumbing installation often is taken for granted. That's unfortunate, considering its cost, relative permanence, and tendency to generate punch-list and callback items. You can avoid—or at least minimize —many problems by preplanning the layout, paying attention to specifications, and casting a watchful eye toward field installation. That can result in an optimum and more problem- free system for you as well as an attractive and functional system for the customer—a great selling point. There is nothing complex about plumbing: It consists of