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Plumbing and drainage

Look for quiet water leaks before they damage the home

A small leak can waste water, raise bills, and damage cabinets, floors, walls, or equipment before it becomes obvious.

Homeowner guidance with clear stop points

When it usually needs attention

Ongoing home-care habit

EPA WaterSense recommends regular checks and response to changes in bills, flow, sound, staining, or moisture.

When this guide applies

A non-invasive visible leak review applies to occupied homes.

What to do

Look and listen at toilets, faucets, showerheads, under sinks, appliance connections, the water heater, and accessible hose connections; compare water use only when no fixtures are running.

Applies when: A non-invasive visible leak review applies to occupied homes.

Who should handle it: Residents report and may use a known safe main shutoff during an active leak; repair responsibility follows ownership, lease, association, utility, and local rules.

Tools

  • Flashlight
  • Dry paper towel for confirming a safely reachable drip
  • Water bill or utility leak alert if available

Parts and supplies

  • Absorbent towel or container for a minor active drip

Safety gear

  • Gloves for ordinary cleanup
  • Avoid sewage, mold, and wet electrical equipment

Before you start

  • Know the main water shutoff
  • Keep cabinets and equipment safely accessible

Power, water, or fuel shutoffs

  • Use only a previously identified safe water shutoff
  • Do not touch wet electrical controls

Cleaner or chemical limits

Do not use drain cleaner, bleach, degreaser, or sealant to hide an unidentified leak.

Stop and get help when

  • Leave or call emergency help for flooding that threatens occupants or structure
  • Do not enter standing water near electrical equipment
  • Stop for sewage, gas odor, hidden piping, or structural damage

Who to call: Use the utility, responsible owner, plumber, appliance service, water-mitigation provider, electrician, or emergency service appropriate to the source and severity.

Reviewed sources