Whole-house water meter with leak indicator; flow-based leak detection on supply line (auto-shutoff or alert)
WaterSense Homes §Leak Detection — meter w/ leak indicator + warrantyDescription
WaterSense Homes V2 includes a leak-detection requirement: the water meter must have a leak indicator (a low-flow dial that shows even tiny continuous leaks). Many recent specs additionally require / recommend a whole-house leak-detection device on the main supply line that monitors flow patterns and either alerts the homeowner (Flo by Moen, Phyn) or auto-shuts off (Flo Smart Water Shutoff, LeakSmart). Pressure-reducing valve required where static pressure > 80 psi.
Why this exists
Undetected leaks waste an average of 10,000 gallons/year per home — and cause water damage. A $300-500 smart leak detector pays back through reduced insurance premiums + avoided damage. Architects should plumb a junction box near the main shutoff for the leak detector + alert speaker.
Measurements
| Property | Operator | Value | Unit | Note |
|---|---|---|---|---|
maxPressure | max | 80 | psi | Static pressure above which PRV required |
Categories
Source
Solver enforcement
Browsable only — the solver does not currently enforce this directive (no spec-level data to check against). This entry exists so the architect personas can cite it in conversation and the user can read what the rule says.
Related directives
- Exterior ramps: maximum slope 1:12, minimum 36 inch clear width · HUD FHA Design Manual Chapter Two §2.7
- Build to the latest natural-hazard-resistant code edition · FEMA P-2325 §Building Codes Basics
- Coastal-pile foundations should embed deeply to resist erosion + uplift · FEMA P-2325 §Florida Building Code / Sand Palace lessons
- Lowest floor at or above Base Flood Elevation in Special Flood Hazard Areas · FEMA P-2325 §Flood Hazard Provisions
- In WUI zones, protect openings from wind-blown embers · FEMA P-2325 §Wildland-Urban Interface (WUI)
Last reviewed 2026-05-15.