What this guide helps you decide
Find the household water meter and note its reading when no fixtures or appliances are supposed to be using water. Some meters have a small flow indicator; others display live flow digitally.
Start with the existing conditions
Confirm that washing machines, irrigation, ice makers, water softeners and automatic fill devices are inactive during the check. Wait and compare readings using the meter's own instructions.
Plan materials, layout and access
If use continues, check obvious culprits such as running toilets, dripping hose bibs and irrigation valves. Photograph the display and write down the test conditions rather than guessing at a hidden pipe failure.
Check the result and plan follow-up
Repeat the check at another quiet time if the first result is ambiguous. Persistent unexplained use needs investigation before water damages cabinets, slabs or landscaping.
Common mistakes to avoid
- Testing while irrigation is running
- Confusing a one-time reading with continuous flow
- Opening or tampering with utility-owned meter equipment
Tony’s Pro Tip
Start with a quiet-house reading before paying to open walls. A little data helps narrow the search for the source.
Should you DIY or hire help?
Call a plumber or leak-detection specialist for persistent meter movement with all known uses off, wet flooring or unexplained loss of pressure.
Keep planning with related guides
Need a second set of eyes?
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Request a Free EstimateGeneral homeowner education only; not a substitute for a site inspection or manufacturer instructions. Local code, permits and applicable licensing may affect the correct approach. © 2026 My Neighborhood Handymen. All rights reserved.