Water Line Repair in Severna Park
Main Line, Supply Line, Fixed Right

Main Water Service Line

The pipe running from the municipal connection at the street to the main shutoff inside the home. Failures in this line are dramatic — significant water loss, wet yard over the line path, or sudden total loss of water supply. Service line failures in Severna Park older homes often involve the transition from a municipal-side connection material to the home-side material — copper or galvanized — where corrosion accelerates at the interface.

Galvanized Supply Line Failures

Supply line failures in Severna Park’s pre-1978 homes typically manifest as pinhole leaks at corroded sections — a small leak that progressively grows. The first indication is often a water stain on a wall or ceiling. Galvanized pipe pinhole leaks rarely occur in isolation; they indicate the surrounding pipe is at a similar stage of corrosion.

Copper Pinhole Leaks

For related service information, see leak detection before opening the wall.

Copper supply lines in Severna Park homes from the late 1970s–1990s can develop pinhole leaks from pitting corrosion — a form of corrosion associated with water chemistry conditions. Hard water and slightly acidic water conditions both contribute to copper pitting. A single pinhole leak in copper lines warrants assessment of the surrounding pipe; other pitting sites are typically present.

Polybutylene Fitting Failures

Polybutylene pipe — common in 1978–1995 Severna Park builds — fails at fittings and connections as the material degrades from chlorinated water exposure. The fitting itself typically fails rather than the pipe run, but once one fitting fails, adjacent fittings are at a similar degradation stage.