The single-lever kitchen faucet is one of the most familiar pieces of American plumbing. This Old House plumbing and heating expert Richard Trethewey tours the state-of-the-art factory where this tried and true fixture is made. Back at the Charlestown townhouse, progress continues on the landscaping, as Roger Cook accepts delivery of the new plants. Inside the house, it's a big day for the kitchens as both sets of cabinets, one for the rental unit, and one for the Beliveau's home, arrive on the job site. Steve arrives at the job site to find Roger Cook and crew unloading the plants from the nursery truck. Roger and landscape architect David Hawk then discussion their positioning and planting. Inside, Dan applying thinned-down joint compound to front stairs wall prior to paint crew's arrival. In the owners' kitchen, our master carpenter finds Eric Rikeman checking on the new cabinet's installation and discusses some of its features. Steve finds Richard in the master bath filling soaking