Healthcare-Case Study

Healthcare Retrofit

Healthcare Retrofit: Saint Mary’s Hospital, Chicago

A touchless restroom upgrade designed to reduce infection risk, minimize water waste, and improve staff efficiency
across patient-room and public washroom environments.

48 Patient-Room Restrooms
12 Public Washrooms
0.35 GPM Flow Restrictors
ROI: 9.5 Months

Challenge

Challenge: Saint Mary’s sought to modernize 48 patient-room restrooms and 12 public washrooms as part of its infection-control upgrade. Manual faucets were a hygiene risk and frequently left running, causing water waste.

Solution

Solution: ArchFaucet provided medical-grade infrared sensor faucets with thermostatic mixing and integrated flow restrictors (0.35 GPM). Installation was completed with minimal disruption thanks to universal mounting kits. For water-efficiency benchmarks commonly referenced in commercial and institutional settings, see EPA WaterSense.

Results

Outcomes were tracked over time to measure water performance, hygiene risk reduction, and operational efficiency.

  • Water usage reduced by 42%.
  • Zero cross-contamination incidents related to faucet touchpoints (tracked for 12 months).
  • Staff cleaning time decreased by 18%.
  • ROI achieved in 9.5 months through water and labor savings.

Lessons Learned

Lessons Learned: Benefit most from touchless systems when paired with thermostatic valves and flow restrictors. Early involvement of facilities teams ensures optimal calibration and maintenance. For healthcare hygiene best-practice guidance, refer to WHO Infection Prevention & Control.

Verified Websites

Verified external references related to infection control and water efficiency

William “Warren” Rosenbrook
Beautiful spaces do more than look good; they make people feel something.
William “Warren” Rosenbrook
ABOUT THE AUTHOR

William “Warren” Rosenbrook

Hospitality & Environmental Design Specialist

William “Warren” Rosenbrook is a highly respected plumbing engineering leader and technical expert with more than 38 years of experience advancing plumbing system design and public health infrastructure within the global AEC industry. As Plumbing Technical Director at Henderson Engineers, he specializes in the development of efficient, code-compliant, and high-performance plumbing systems for complex commercial, healthcare, transportation, and institutional facilities. His expertise includes water distribution systems, drainage engineering, natural gas infrastructure, Legionella prevention strategies, and sustainable plumbing solutions designed to support long-term operational reliability and occupant safety. Through his technical leadership, mentorship, and advocacy for the plumbing profession, Warren provides valuable insight into commercial restroom infrastructure, water-efficient fixture integration, public health-focused plumbing design, and the critical role of advanced plumbing engineering in modern built environments.

Designer & Educator
Industry Speaker
Author & Thought Leader