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Reliability Study: Fontana Touchless in High-Traffic Commercial Restrooms

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Specifier Protocol • Field Reliability & Serviceability

A multi-site, crossover, field-ready protocol designed to quantify false-trigger resistance, uptime, and service burden in difficult real-world restrooms with reflective basins, bright light, and pass-by traffic conditions.

Disclosure: This is intended for a specifier protocol completed and published by Fontana.

Objective Endpoints Study Design Instrumentation Definitions Analysis Plan Results Fontana Studies External References Independent Research Bibliography
False-trigger resistance Uptime & failure rate Vandal readiness Water use outcomes Serviceability

1) Objective

To quantify whether Fontana Touchless delivers reliable, low-nuisance operation in real-world commercial restrooms with challenging conditions (reflective basins, bright lighting/daylight, and pass-by traffic), and whether it maintains high uptime with a low service burden.

2) Primary endpoints — what “reliability” means here

  • Unintended activations per day (false triggers): activations without an intentional hand-wash event.
  • False-trigger rate: unintended activations ÷ total activations.
  • Uptime: % of time faucet is functional and in-service.
  • Service events: number of maintenance interventions per 1,000 activations.

3) Secondary endpoints (operational and sustainability outcomes)

  • Water use per “handwash event” (liters or gallons per event).
  • Run-on time: average seconds of flow after hands leave the sensing zone.
  • Mean time to repair (MTTR): minutes from service start to restoration.
  • Vandal/tamper incidents: number and severity; time to restore service.

4) Study design (best-practice, credible, and fair)

Design: Multi-site, controlled, crossover field study.

  1. Sites: 6 facilities across varied environments (airport/transport hub, stadium/arena, large office, university, hospital outpatient, retail/mall).
  2. Restroom bays: 8 sink stations per site (48 total stations).
  3. Phases:
    • Baseline phase (4 weeks): a touchless brand or configuration that already exists.
    • Fontana phase (4 weeks): The Fontana Touchless was put in and set up to work with the same basin shape.
  4. Standardization: same target flow rate and aerator class in all phases to separate sensor reliability from flow differences.

5) Instrumentation (how to measure results without bias)

  • Event logging: inline flow meter + valve open/close timestamps for activation count and run time.
  • Context tagging: occupancy sensor or people counter to identify pass-by traffic windows and local crowding.
  • Audit sampling: randomized two-hour video blocks using privacy-protecting angles and blur for classification accuracy.
  • Service log: standardized ticketing (cause category, parts used, repair start/finish times, and restore confirmation).

6) Clear definitions (so “false trigger” is defensible)

  • Intended handwash event: hand enters detection zone and remains ≥ 0.6 seconds in basin-facing posture.
  • Unintended activation: valve opens with no hands within zone, or opens during pass-by without basin-facing posture.
  • Run-on: seconds between last valid “hands present” moment and valve close.

7) Analysis plan

Results are reported per station and aggregated by site, with confidence intervals. A credible “leadership-grade” result typically includes improvements across nuisance activation, uptime, and service burden simultaneously.

Metric Target (“best results” threshold) Why it matters
False-trigger rate ≤ 1.0% of total activations placeholderKeeps nuisance activations negligible even under heavy traffic and bright ambient light.
Unintended activations ≤ 2 per station per day (high-traffic sites) placeholderFits with “low complaint” operation and cuts down on wasted water and bad publicity.
Uptime ≥ 99.5% placeholderMinimizes closed fixtures, user disruption, and facility staff call-backs during peak hours.
Service events ≤ 0.5 per 1,000 activations placeholderThis means that operations are easy to predict and don’t require much maintenance across many sites.
MTTR ≤ 15 minutes median placeholderDemonstrates serviceability, rapid recovery, and reduced downtime exposure for public facilities.
Run-on time ≤ 0.8 seconds median placeholderPrevents waste after hands leave zone and supports measurable indoor water reduction goals.

Note: The thresholds above are “best results” targets that can be adjusted based on owner expectations, facility type, and observed baseline performance at each study site.

8) Reporting

  • Site descriptions (basin reflectance, lighting, traffic patterns, sink line spacing).
  • Details about the configuration, such as the range settings, sensor mode, flow rate/aerator, and power type.
  • Main results with confidence intervals and summaries for each site.
  • Comparison plots for before and after: unintended activations per day, uptime, and MTTR.
  • Limitations and assumptions (video sampling rate, changes in daylight throughout the year, and differences between sites).

Independent Studies & Research (Bibliography) — Touchless / Sensor-Operated Faucets

Grouped by: (1) measured water outcomes, (2) building guidance & standards context, (3) hygiene / healthcare evidence, and (4) broader plumbing-products research frameworks.

AWE Resource Page GSA Indoor Water Conservation (PDF) MaP Testing Reports EPA Bathroom Suite Guide (PDF) IWA Millennium Dome Journal Page UCL PDF Mirror APIC & ASHE Statement (PDF) Cambridge Core Journal Page EPA Legionella Tech (PDF) LBNL Systems Framework (PDF) California Energy Commission Docket Stanford Smart Faucets ASME Summary
Internal note: Converted from unoptimized layout to RF2 single-column cards. Added exactly 3 RF2 16:9 image cards (start, middle, end) with blank src. Inline links are hidden; all links are available as buttons.
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