The phrase "a main break" is correct and usable in written English.
It can be used in contexts related to plumbing or infrastructure, specifically referring to a significant rupture in a main water line or similar system.
Example: "The city has reported a main break that is affecting water supply in several neighborhoods."
Alternatives: "a major leak" or "a primary rupture".
Any time something happened at a prison a fight at 10 30 PM, a water main break, a riot, a sit-down, or God forbid somebody died—I'd get notified.
Her movement suffered a blowback last month, when a water main break forced a boil-water order in the Boston area for several days.
Emergency workers were also dealing with a water main break and a natural gas leak.
Folsom Street is closed between Colorado Avenue and Taft Drive after a water main break caused a sinkhole in the road, and officials said the street likely will remain closed for the rest of the day.
With GE's system, cities can still tap into the same power and networking, but they can also communicate with the Predix cloud and generate content based on conditions (such as an impending snowstorm or a water main break).
Fire officials reported a water main break in front of a hospital and another water line break at a department store.
Ten days after a water main break forced the closing of a stretch of lower Fifth Avenue, the avenue is to be partly reopened to traffic this morning at 6, city officials said yesterday.
Folsom Street near the University of Colorado campus likely will remain closed until early next week as crews continue to repair damage to the roadway after a water main break early Thursday morning caused a sinkhole, city officials said this morning.
But for a steady drizzle, water was in short supply Tuesday on the north side of 57th Street between Fifth Avenue and Avenue of the Americas, where a water main break the day before had forced a shutdown.
