Three-Way, Two-Way or One-Way Switch?
Two switches, one light, yet electricians call it a three-way. The wiring logic behind the name and how the circuit actually works.
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Field notes and practical answers for homebuyers, homeowners, sellers, and property professionals across the DC region.

Two switches, one light, yet electricians call it a three-way. The wiring logic behind the name and how the circuit actually works.
Read articleThumps, pops and hisses from the water heater usually mean sediment sitting in the tank. What each noise says and what to do about it.
Read articleWater is patient, and your foundation pays for it. Grading, gutter care and downspout extensions that steer runoff away from the walls.
Read articleFresh air without the chill takes a little strategy on cold, sunny days. Using wind direction and window choice to ventilate comfortably.
Read articlePrimer is the difference between paint that grips and paint that peels. What it does, when you need it, and when you can safely skip it.
Read articlePlumb, level and square each describe a different kind of straight. What the three terms mean and how to check them on your own projects.
Read articleHigh-voltage lines run closer to daily life than most people realize. Ground rules for ladders, trees and projects near residential wires.
Read articleSkip the juggling act with multiple hooks. A wall-mounted bracket makes hanging a heavy mirror or picture safer, straighter and less frustrating.
Read articleTap water above 120 degrees scalds quickly, especially for children. How to dial the water heater down and what the change saves in energy.
Read articleWhat a 5-in-1 painter's tool actually does, from opening cans to scraping and cleaning rollers, and why one belongs in every paint kit.
Read articleA garden hose can siphon contaminated water back into your supply. How backflow happens at the hose bib and the small device that stops it.
Read articleHose bibs freeze and split when winter catches them wet. Draining, insulating and shutoff steps that protect the outdoor faucet this season.
Read articleExplore independent inspection and testing services for the questions an article cannot answer about your specific property.