Ground-fault circuit interrupters cut power in milliseconds when current leaks — required by code near sinks, in bathrooms, and around sump pumps and laundry areas. If a sump pump trips a GFCI repeatedly, diagnose the pump; don't move it to an unprotected outlet.
Plumbing terminology in MD, DC, and Northern Virginia maps to older supply lines, basement sump pumps, water pressure regulation, and the licensing (MD PLB & GFC, VA, DC) that real plumbing work requires.