What it means
A ball valve uses a perforated ball to start or stop flow with a 90-degree turn of the handle. Full-port models offer minimal restriction when open, making them popular on main lines and water heater connections.
They seal well when new and are easier to operate than older gate valves that may seize after years without use.
Why it matters in Santa Cruz County
Many Santa Cruz County homes still have original gate valves on copper mains. Plumbers often upgrade to ball valves during repipes in Felton, Ben Lomond, and mid-century ranch homes where a stuck shutoff delays emergency repairs.
Homeowner tip
Label your main ball valve and exercise it once a year so it turns freely in an emergency.
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Related glossary terms
Also explore the Septic Glossary or call 831.225.4344 with questions about your property.