What sensors do and do not do
A leak sensor detects water at its location and sounds an alarm or sends a message. It does not stop the flow unless it is paired with an automatic shutoff valve. A sensor in the right place gives a head start, but it is only useful if someone hears or sees the alert. If the house is empty, a connected sensor that sends a notification to a phone may help; a battery-chirp unit helps only when someone is nearby.
Placement table
| Location | Why here | Type (chirp, connected, shutoff-linked) | Who is alerted | Battery date |
|---|---|---|---|---|
| Behind or beside the washer | Hose and drain failures | |||
| Under dishwasher or kitchen sink | Slow gasket and supply leaks | |||
| Next to the refrigerator | Ice maker line | |||
| Beside the water heater | Tank and fitting leaks | |||
| By the furnace or humidifier | Humidifier and condensate | |||
| Beside the softener | Connections and brine tank | |||
| Basement low point | Water collecting from any source |
Choosing a type
- IfSomeone is usually home and within earshotA simple audible sensor may be enough.
- IfThe house is often empty or you travelConsider a connected sensor and make sure alerts reach someone.
- IfYou want water to stop automaticallyAsk a plumber about a shutoff valve that works with sensors.
- IfThe spot is hard to reachUse a sensor with a probe on a cable.
Testing routine
- Test each sensor with a damp paper towel on a schedule
- Replace batteries on a calendar date
- Verify that the phone alert actually arrives
- Recheck the placement after moving appliances
- Add sensors when a new appliance is installed
Planning for Arvada layouts
In a ranch or bi-level, basements and utility rooms are the natural low spots. In an upstairs-laundry two-story, a sensor in the laundry pan matters most, and one in the basement or ground-floor utility area is a second line. Write the plan on this page and keep it with your shutoff map.
Remember that a sensor is a device, and devices fail. Batteries run down, connections drop, and phones get silenced. Treat a sensor as a second line behind a good valve habit, not a replacement for it. Write the test date on the sensor itself, and replace any unit that does not respond to a wet paper towel.
Consider also how the alert will be heard on a different floor. A chirp in a basement corner may be inaudible from a bedroom, so test the real distance from where people sleep.
General information for Arvada, not a quote or professional advice. In an emergency, call 911.