In this article, we''ll show you some basics--how to position outlet and switch boxes and run electrical cable between them. We won''t cover many other details. For information about how to connect the outlets, switches and light fixtures, see "For More Information" on p. 68. For help with circuit design and making connections to your main electrical panel, we recommend you consult a licensed electrician. Bringing more power to the upper floor of a house--for outlets, lights or a bath fan--usually means first running cable into the attic. The main plumbing vent stack often provides the easiest path. Usually, there are gaps around the stack where it passes through ceilings and floors, so you can drop a plumb bob from the attic to the basement or crawlspace. To get past ceilings and floors, you may have to bounce the plumb bob until it finds the gap. When the plumb bob reaches the basement, tie cable to the chain and pull it up to the attic. Quick and simple. But this trick won''t work all the time: Unlike cast-iron stacks, which have to run straight up to support their own weight, lighter plastic stacks sometimes include short horizontal sections. And in recent years, builders have begun sealing the gaps around stacks to keep fire from spreading and to prevent heat loss. For this article, I tested ten professional-grade tools from nine different manufacturers: Bosch, DeWalt, Hilti, Hitachi, Makita, Metabo, Milwaukee, Panasonic, and Porter-Cable. I chose to focus on the 14.4-volt tools because they''re a reasonable compromise between the lighter 12-volt and the heavier 18- and 24-volt models. Tradespeople seem to agree, because they buy more 14.4-volt drill-drivers than any other cordless tool.

Upgrading petroleum storage is largely a voluntary effort by farmers. EPA regulations dating back to 1972 require secondary containment on all above-ground tanks larger than 660 gallons, or where fuel storage exceeds 1,320 gallons. However, these rules predate 1984 amendments, which don''t mention these requirements. Few states enforce the regulations.Underground tanks larger than 1,100 gallons face more regulations. In 1988, the EPA estimated one fourth of the 1.8 million buried fuel tanks were leaking. Since then, most have been removed or replaced with noncorrosive tanks.

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