Causes
What Goes Wrong With Norfolk Water Lines
Nobody thinks about the supply line until it fails — which is exactly the problem. It sits pressurized 24/7, buried in soil that shifts and stays wet, expected to last decades without a glance. In Norfolk, most failures trace back to one of these five causes.
Galvanized pipe aging out. Norfolk's 1890s–1920s homes often still carry galvanized steel supply lines, and galvanized has a lifespan — roughly 40 to 60 years. The zinc coating wears away, the steel corrodes from the inside, and the pipe narrows until pressure drops and the water runs brown. It looks fine from outside right up until the wall thins enough to weep or split; the oldest homes may even have lead-era lines still in the ground.
Soil movement. Ground shifts — heavy vehicles overhead, saturated soil after storms, slow settling over decades — and the stress concentrates at joints and fittings, where cracks start. Norfolk's coastal soils and high water table keep buried pipe sitting in wet ground most of its life, which doesn't help.
Pressure swings. High or surging pressure hammers joints, valves, and thin old pipe walls with every cycle. When pressure trouble hits every fixture at once instead of just one, that's the signature of a supply-side problem rather than a single bad valve.
Something hit it. Fence posts, landscaping, construction — a shovel finds a buried line faster than you'd think. Homes raised against flooding need their supply lines rerouted and reconnected too. If the symptoms started right after work on the property, say so on the call; it shortens the hunt considerably.
Hard freezes. Norfolk winters are usually mild — until they aren't. January 1977 and the Blizzard of '96 both split their share of exposed pipes, and shallow or uninsulated sections are still the vulnerable ones. Before the first real cold snap: disconnect hoses, insulate exposed runs, and know where the main shutoff is.