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Compare your water bills, then test the meter with all water use stopped. If the meter changes, check toilets, visible plumbing and outdoor irrigation to find the source. These steps can reveal many common leaks before you decide whether to make a simple repair or call a plumber.
Start by checking your water bill
Compare the latest bill with the same month last year rather than only with the previous month. Seasonal changes—especially outdoor watering—can make month-to-month use look unusual even when nothing is wrong. Check the billing period and units, too, because utilities do not all report use the same way.
A sudden increase is a reason to investigate, not proof of a leak. EPA WaterSense says that use above 12,000 gallons per month in winter may indicate a serious leak in a family of four’s home when there is no winter outdoor water use. Treat that as a screening clue, not a universal limit: household size, climate, billing dates and local conditions affect what is typical. EPA WaterSense home-maintenance guidance
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Check the meter for water use you cannot see
- Stop water use. Turn off faucets and water-using appliances, and make sure irrigation is not running. Avoid using water during the test.
- Find and read the meter. In the U.S., meters are commonly near the curb outside or inside the home, such as in a basement. Record the reading and its units; if the meter is difficult to access or unclear, ask your water utility for help.
- Wait two hours. Keep all water use off during this period.
- Read the meter again. If the reading has changed, water is still flowing somewhere. The meter check does not identify the source, so continue with fixture and plumbing checks. If the result conflicts with your bill or you cannot interpret it, contact the utility.
EPA WaterSense recommends this two-hour no-use check as a way to detect ongoing flow. EPA Fix a Leak Week guidance and EPA home-maintenance guidance
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- Breakthrough 1804 ft Connectivity: Engineered with advanced Sub-1G long-range wireless tech, our leak detector maintains robust signals over unprecedented distances—reaching up to 1804 feet even through 5 dense walls. Secure every critical space in expansive properties, from deep basements to detached garages and distant outbuildings.
- Multiple Reminder Methods: Our water leak sensor supports multiple remote alarm. It can instantly send SMS, APP, and Email notifications to your phone (no matter how many times the SMS is used, it's free). Also, the water leak sensor flashes red and sounds a 105 dB alarm. Perfect for the basement, kitchen, or vacation home!
- Feature-Rich App: Receive instant push notifications. Use the “Find Device” feature to quickly trigger audible beeps to retrieve misplaced sensors. Add multiple email addresses through the APP, and your family and friends can also receive reminders when there is a water leak at home.
- Industry Leading IP67 Waterproof: Its IP67 waterproof rating ensures durability against spills, humidity, and accidental submersion.It can be used multiple times after wiping dry.
- Four-level volume adjustment: Customize your own alarm to fit your life! Use the app to adjust the volume in 4 levels, with a maximum alarm volume of 105 decibels. Whether it's day or night, whether it's in the bedroom or the basement, you can find the right volume.
Test toilets for a silent leak
- Put a few drops of food coloring or a dye tablet in the toilet tank.
- Wait about 10 minutes without flushing.
- Look in the bowl. If colored water appears, water is leaking from the tank into the bowl.
- Flush after the test to clear the dye and avoid staining.
A worn flapper is a common cause, but a fill valve or another tank component may be responsible. Check whether the flapper is visibly worn; if replacing it does not stop the leak, inspect other components or consult a plumber. If you buy a replacement flapper, confirm it is compatible with your toilet. Food coloring works, so dye tablets are optional. EPA WaterSense home-maintenance guidance
Inspect visible plumbing and outdoor equipment
Look for moisture, drips or signs of water where connections and fixtures meet. Check:
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- Breakthrough 1804 ft Connectivity: Engineered with advanced Sub-1G long-range wireless tech, our leak detector maintains robust signals over unprecedented distances—reaching up to 1804 feet even through 5 dense walls. Secure every critical space in expansive properties, from deep basements to detached garages and distant outbuildings.
- Multiple Reminder Methods: Our water leak sensor supports multiple remote alarm. It can instantly send SMS, APP, and Email notifications to your phone (no matter how many times the SMS is used, it's free). Also, the water leak sensor flashes red and sounds a 105 dB alarm. Perfect for the basement, kitchen, or vacation home!
- Feature-Rich App: Receive instant push notifications. Use the “Find Device” feature to quickly trigger audible beeps to retrieve misplaced sensors. Add multiple email addresses through the APP, and your family and friends can also receive reminders when there is a water leak at home.
- Industry Leading IP67 Waterproof: Its IP67 waterproof rating ensures durability against spills, humidity, and accidental submersion.It can be used multiple times after wiping dry.
- Four-level volume adjustment: Customize your own alarm to fit your life! Use the app to adjust the volume in 4 levels, with a maximum alarm volume of 105 decibels. Whether it's day or night, whether it's in the bedroom or the basement, you can find the right volume.
- Faucets and their gaskets
- Pipe fittings beneath sinks
- Tub spouts and showerhead connections
- Outdoor hose spigots
- Sprinklers, irrigation valves and other outdoor watering equipment
A dry-looking room does not rule out a leak elsewhere: outdoor irrigation faults can raise use even when indoor fixtures appear dry. EPA lists worn toilet flappers, dripping faucets and leaking valves among common household leaks. EPA Fix a Leak Week guidance and EPA’s 2024 Fix a Leak Week release
Choose between a repair, a plumber and monitoring
Make a simple repair only when the source is clear
If a toilet leak appears to come from a worn flapper, replacing that part may be a reasonable first step. Some dripping faucet or showerhead-connection repairs may use basic tools or sealing tape. Stop if the leak source is hidden, you are unsure how to make the repair, or water damage is occurring; call a plumber instead. EPA’s repair guidance covers common household leak fixes. EPA WaterSense home-maintenance guidance
Rank #3
- Complete plug-and-play kit: hub plus Leak Sensor 1 units for whole-home coverage at toilets, sinks, water heaters, laundry, dishwashers, and sump areas.
- Long-range LoRa: reliable coverage where Wi-Fi struggles (up to 2,034 feet open air); get app, email, and SMS/text alerts and name sensors by location.
- Works even without internet: with YoLink Control-D2D, sensors can directly trigger YoLink sirens or shutoff valves for local protection during outages.
- Silent design: Leak Sensor 1 has no built-in siren; add SpeakerHub or a YoLink siren for audible or spoken alerts if desired.
- Scalable IoT platform: one hub supports 300+ YoLink devices; part of a whole smart home/building ecosystem; hub options include standard Hub, SpeakerHub, and Cellular Hub.
Contact the utility when use remains unexplained
If the meter test shows flow but you cannot find the source—or the bill and meter results do not make sense—ask your water utility for help. The utility can also tell you whether it offers leak alerts or other local assistance. Meter access, billing units and available programs vary by location.
Consider a leak device for ongoing alerts
Leak devices are optional; choose one only if ongoing alerts or automatic shutoff are useful enough to justify its cost and installation. EPA describes two broad categories:
Rank #4
- SMS, APP & Email Real-time Alerts: Connect the gateway to Wi-Fi, and it will instantly send SMS, APP, and email notifications and alerts to your phone when a water leak occurs, even if you're not at home, helping you locate the leak faster.
- Voice Assistant Reminder: Intelligent voice control allows more freedom if you don’t want to look at your phone at home or not with you. Easily pinpoint water leaks using GoveeHome App or Alexa Voice Assistant.
- Extremely Long Range: Powered by LoRa technology, the long-range low-power system offers the industry’s longest receiving range (1968 ft). Areas such as basements and sheds connect up to 100 sensors to deliver product information smoothly.
- High Sensitivity: This water leak detector is equipped with 2 top sensor probes and 4 bottom sensor probes to detect water leaks and drips. When a water leak occurs, it will activate an alarm up to100dB.
- IP66 Waterproof: The IP66 waterproof rating allows long-term use in wet/damp areas, such as near or under, toilets, water heaters, laundry machines, dishwashers, sinks, fish tanks, in or near sump pumps, and by any other location subject to water leaks and flooding. One battery can last over 5 years under normal usage, so you can use it with confidence.
| Device type | What it detects | What to consider |
|---|---|---|
| Moisture-sensing device | Unexpected dampness at the sensor’s location | Placement matters; a point sensor may not detect a leak elsewhere. |
| Flow monitor | Water-use patterns that may indicate a leak or another irregularity | Check installation needs, plumbing compatibility, alert method and whether the model offers automatic shutoff. |
Capabilities differ by model: a device may monitor one location or broader household flow, and alerts or shutoff features are not universal. Compare maintenance and price as well as installation and alert options; EPA’s guidance explains selection considerations but does not name a best brand or model. EPA leak-detection and flow-monitoring device guide and EPA device guide PDF
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EPA WaterSense estimates that household leaks account for nearly 10,000 gallons of water a year on average, though that figure does not predict how much any one home is losing. EPA also says fixing easily corrected household leaks can save homeowners about 10 percent on water bills. Actual savings depend on the leak, household use and local rates. EPA WaterSense leak checklist and EPA Fix a Leak Week guidance
Best Value
- Breakthrough 1804 ft Connectivity: Engineered with advanced Sub-1G long-range wireless tech, our leak detector maintains robust signals over unprecedented distances—reaching up to 1804 feet even through 5 dense walls. Secure every critical space in expansive properties, from deep basements to detached garages and distant outbuildings.
- Multiple Reminder Methods: Our water leak sensor supports multiple remote alarm. It can instantly send SMS, APP, and Email notifications to your phone (no matter how many times the SMS is used, it's free). Also, the water leak sensor flashes red and sounds a 105 dB alarm. Perfect for the basement, kitchen, or vacation home!
- Feature-Rich App: Receive instant push notifications. Use the “Find Device” feature to quickly trigger audible beeps to retrieve misplaced sensors. Add multiple email addresses through the APP, and your family and friends can also receive reminders when there is a water leak at home.
- Industry Leading IP67 Waterproof: Its IP67 waterproof rating ensures durability against spills, humidity, and accidental submersion.It can be used multiple times after wiping dry.
- Four-level volume adjustment: Customize your own alarm to fit your life! Use the app to adjust the volume in 4 levels, with a maximum alarm volume of 105 decibels. Whether it's day or night, whether it's in the bedroom or the basement, you can find the right volume.
If you replace a fixture, WaterSense-labeled products are independently certified to use at least 20 percent less water than standard models while performing as well or better, according to EPA’s 2024 release. This applies to qualifying labeled products, not to total household water use. Check the specific product’s current certification and ask your utility whether local incentives are available. EPA’s 2024 Fix a Leak Week release
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