Home Plumbing Check: Find Small Leaks Before They Turn Into Repairs
A quick monthly walkthrough can catch the small stuff—drips, slow leaks, loose supply lines—before it becomes water damage. The U.S. EPA notes that common household leaks can waste 90 gallons or more per day, so even “minor” leaks are worth hunting down.
What you need (5 minutes)
Grab a flashlight, a paper towel, and your phone (for photos if you spot anything). If you can access your water meter, this check gets even easier.
20-minute home checklist
- Under every sink: Wipe shutoff valves and supply lines with a paper towel; any moisture means a leak or a fitting that’s starting to fail.
- Toilets: Remove the tank lid and listen for a refill sound when nobody flushed; for a quick dye test, add food coloring to the tank and wait about 25 minutes—if color shows in the bowl without flushing, water is leaking.
- Shower/tub: Check the tub spout and showerhead for steady drips; look at the caulk line for dark staining or soft drywall nearby.
- Water heater area: Look for dampness at the base, corrosion on fittings, or a wet pan; snap a photo of the temperature setting so you notice accidental changes later.
- Laundry hookups: Feel around the washer valves and the hose connections; a slow seep can run down the wall and stay hidden.
- Outdoor hose bibs: Turn them on and off once; check for dripping at the handle stem and where the pipe enters the wall.
Simple fixes that help
If you find a loose connection, a small snug (not over-tight) can stop a drip, but stop if the fitting spins freely or the pipe moves. Swap worn toilet flappers and fill-valve seals when the dye test fails—those parts are cheap, and the change is immediate.
When to call a plumber
Call for help if you see staining in ceilings/walls, the meter shows flow with every faucet off, or you find moisture that keeps coming back after drying. If a shutoff valve won’t turn, don’t force it—getting it replaced before an emergency is money well spent.
Residential image
Homeowner kneeling under a bathroom sink with a flashlight and a paper towel, checking a shutoff valve for moisture; normal home bathroom, warm lighting, no uniforms, no logos, no “staged” tool layout.
