ELECTRICAL & PLUMBING

In real-estate speak, many older houses have “mixed” wiring, from ungrounded knob-and-tube that predates, that means you’ll likely find everything from cast-iron waste or vent pipes and copper delivery lines to galvanized pipes and modern PVC. Low water pressure may be a sign that some of the older iron or galvanized pipes are corroded or blocked. While they may eventually need replacing, this presents less of a safety risk.