Style and polish are typically what sell tub and shower mixer valves; those are things the customer can see and touch. But some homeowners are also beginning to ask questions about other factors —durability, repairability, safety, and convenience. It pays to know enough to answer these questions, and it can often result in your clients choosing a fixture that benefits you and your plumber as well. All That Glitters The number of designs available is mind boggling. In April, I attended the National Kitchen and Bath Industry Show sponsored by the NKBA (National Kitchen & Bath Association) in Chicago; I had no idea there were so many ways to get water into a shower or bath. Many of the