Residents of Miami Beach’s Sunset Harbour neighborhood and the islands of Rivo Alto and Belle Isle dealt with water service disruptions and boil water advisories Saturday and Sunday as the result of four different water main breaks on the Beach during the weekend.

The first happened Saturday morning, when a 20-inch water main burst at Purdy Avenue and 20th Street. That breech flooded the Sunset Harbour neighborhood, and made the bridge between that area and Belle Isle impassible. Apartment and condo complexes as far south as West Avenue and Sixth Street lost water pressure.

Another 20-inch water break occurred on Purdy Avenue near Venetian Way and Maurice Gibb Memorial Park. It was repaired about 3:30 a.m. Sunday.

Miami Beach spokeswoman Nannette Rodriguez said that first water main break may have contributed to breeches in two smaller mains later Saturday, first on Rivo Alto Island and then on Belle Isle. Rivo Alto homeowners lost water service until 6:30 a.m. on Sunday.

Belle Isle, a community of high-rise condos, lost water service overnight. Service was restored at about 3 p.m. Sunday.

Service was restored late Saturday in Sunset Harbour and along the western edge of South Beach, but the city put boil water advisories in place for six residential complexes at 1701 Purdy Ave., 1771 West Ave., 1333 Dade Blvd., 1800 Alton Rd., 1828 Alton Rd., 1840 Alton Rd. and 1850 Alton Rd.

Rodriguez said that residents who lost water service are advised to boil water until further notice. The precautionary advisory is expect to last about two days while water samples are tested.