The Phyn Plus device continuously sends water usage data to the cloud. This data is analyzed using machine-learning (ML) algorithms to identify patterns that may indicate unusual water activity.
“Unusual” water activity is determined by a combination of factors, including:
Time of water use
Amount of water used
Flow rate (gallons per minute)
Unusual water activity does not always mean there is a leak. In many cases, it may be normal water usage that Phyn has not yet learned to recognize.
How Phyn learns your water usage
Each home has a unique plumbing system and usage pattern. As you use water throughout your day, Phyn builds a model of your home’s normal behavior.
When unusual activity is detected, Phyn asks you questions about the event. Your responses help Phyn determine whether the activity was normal or a potential leak and improve future accuracy.
Note: It is normal to receive multiple alerts for the same fixture while Phyn is learning. Typically, it takes about 3–5 alerts, responded to and identified by you, for Phyn to learn the water usage pattern of a specific fixture.
What you’ll see in the app
When unusual water activity is detected, the Phyn app will show:
A push notification on your iOS or Android device
An alert in the Water Activity section of the app
A severity level of Low, Medium, or High
A series of questions asking whether the activity is normal or a leak
If SMS notifications are enabled, you will also receive a text message.
If the alert is not acknowledged in the app, a follow-up notification will be sent with the same message.
Identifying the source
If you indicate that the water activity is normal, Phyn will ask whether you can identify the source, such as:
Irrigation system
Hot tub
Other household fixture
If you do not identify a source or select Not now, the activity will be logged as Unknown Source.
Over time, as Phyn learns the usage signature of that fixture, alerts for that type of activity will stop.
How this relates to Auto Shutoff and Plumbing Checks
Unusual water activity alerts are part of how Phyn learns your home’s plumbing behavior.
Responding to alerts helps Phyn become more accurate over time
Learned usage patterns help reduce false alerts
This learning also supports features like Auto Shutoff and Plumbing Checks, improving Phyn’s ability to detect real leaks and plumbing issues