Plumbing in the District of Columbia is often an old stack in a narrow house, with fixtures lined up floor over floor and a basement that may sit partly below the alley. Galvanized supply lines and cast-iron drains still serve many rows. Pressure can fade on the top floor. A leak in the kitchen ceiling is frequently the bath above, and sometimes it is the roof. Detached houses add their own long runs and, on some slopes, a harder path to the street. Say what is wet.
Find the main shutoff, often low in the house, before a bad night. Old valves stick. Outdoor spigots on alley walls freeze when the inside stop was left open. If water rises from a floor drain during a storm, that is not the same emergency as a burst supply line. English basements and basement baths may depend on a pump because the fixture sits below the sewer. Say if that pump is part of the problem.
Water heaters hide in closets, cellars, and under stairs. Say gas or electric, and whether the tank leaked or went cold. A dripping relief line onto a basement floor is easy to postpone until it is not. Slow drains that gurgle at more than one fixture can mean the building sewer rather than a single trap. Roots are less the story than settled old laterals, though trees on the green edges still find pipes. Tell us how many fixtures misbehave.
The line from the main to the house is worth knowing in an old city. If you already know it is tired, say that without a speech. You do not need every metal named. You need the floor, the wet spot, and whether you can shut the water off. A remodel that added a powder room may have created a run the original builder never planned.
Describe what is wet. Plumbing in the District of Columbia is old metal in tight chases, alley walls that freeze, and basements that take storm water between the rivers. Call the number on this page.