Xylem (NYSE:XYL) is the market share leader in clean water solutions with segments that address a variety of aspects involved in recycling, treatment, operations and supply. Its stock is a bit pricey at 29.7X, freshly raised guidance of $4.70-$4.85. However, given the secular growth trends and margin improvement opportunity, I think it can be well worth the price and deliver a market beating return. We shall begin by discussing Xylem's industry level demand growth and follow with its internal margin expansi ...