In the ever-amorphous world of eco-friendly home design, plumbers hold a key position in sustainability. Their main area of expertise—water conservation—anticipates the need for reducing household consumption of a vital resource. Since water is essential for any home's operation, the good news is that you and your plumber can choose water-saving fixtures, efficient appliances, and an efficient plumbing system. Anything that reduces the amount of water coming into your home will also reduce the amount of water that has to be heated—as it has to be heated in order to serve household functions—thereby saving energy and reducing your carbon footprint. Anything that reduces the amount of heated water your home's plumbing uses also reduces the amount of energy your home's heating and cooling systems use.
Moreover, rainwater harvesting and gray water recycling programs can be effective components of sustainable design—but only if they are installed and maintained properly. That’s where plumbers come in. Most systems require absolute precision if they are to operate efficiently. If not, they will either waste water (as in the case of improperly calibrated diversion systems) or behave as urban irrigation systems do, largely relying on pressurized municipal water (as some rain gardens do). Smart plumbing makes these systems work seamlessly with the home’s water supply. More than that, though, it makes them act like four parts of a whole, integrated system. Plumbers also advise on maintenance: If a homeowner doesn’t mind climbing up to a loft, a rainwater-capturing system can be installed there with no worries. If a homeowner does mind, a plumbing system has to be somehow integrated into the structure of the house—that is, it must also be smart plumbing.
Plumbers play an essential part in the home design shift toward sustainable, energy-efficient water heating systems. They're in-house about the current dizzying array of solar and new tankless on-demand water heating systems. Yet, as usual, it's our plumbing contractors that are on the vanguard of these new technologies, and here, I think, is the crux with plumbers: They are our on-the-ground, in-house salesmen for the next generation of energy-efficient water heating systems. When they do their jobs and do them right, they promote a picture of the house where not only are the dinosaurs that ran the previous, fossil-fuel-based, plumbing era gone, but those plumbing contracts are now a set of "solar plumbing contracts" that gets sunlight and not flames to do the heating.