Water use Monitoring at IAPMO Headquarters
Client: IAPMO (International Association of Plumbing and Mechanical Officials)
Location: IAPMO Headquarters, Ontario, California
Application: Fixture-level water use monitoring and occupant behaviour analysis
Scope: 30 fixtures across office, bathroom, break room, and laboratory spaces
Products: BluSENSE custom data acquisition system — early prototype hardware that directly inspired the development of BluPULSE
Key Takeaways
Fixture-level monitoring reveals occupant behaviour patterns invisible at the meter
Real-time clock timestamps enable precise event-level analysis
Daily automated reporting eliminates manual data retrieval
On-site data storage ensures security and continuity regardless of connectivity
Complex real-world projects drive better products — BluPULSE was born from this deployment
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Fixture-Level Behavioural Insight — and the Project That Inspired BluPULSE
Background
IAPMO is one of the most respected standards and codes organisations in the plumbing and mechanical industry. When their team wanted to go beyond meter-level consumption data and understand exactly how water was being used throughout their headquarters building — fixture by fixture, event by event — they turned to BluSENSE.
The project would prove to be more than a monitoring study. The complexity and precision required by IAPMO's scope directly drove the development of early BluPULSE prototypes — hardware that has since evolved into the commercial BluPULSE product available today.
The Challenge
Understanding occupant water use behaviour in a commercial building requires a fundamentally different approach to monitoring. IAPMO wanted to know which fixtures were being used, how often, and for how long — across 30 fixtures spanning bathrooms, break rooms, showers, a laboratory, and a backflow prevention lab.
Off-the-shelf solutions couldn't deliver the granularity or reliability required. The project demanded custom hardware capable of capturing precise, event-level data from every point of use in real time.
The Solution
BluSENSE designed and deployed a custom fixture-level monitoring system tailored to the specific layout and requirements of the IAPMO headquarters. Flow sensors were installed on the supply lines of all 30 monitored fixtures, each connected to a dedicated end node with wireless data transmission capability.
The complexity of the project — particularly the need for high-accuracy pulse counting across a large number of distributed fixtures in a challenging installation environment — required BluSENSE to develop purpose-built hardware. These early prototypes formed the technical foundation for what would later become BluPULSE, our commercial pulse monitoring node.
The system captured the following metrics for every flow event at every fixture:
Usage count (flushes, activations)
Duration per event (seconds)
Start and stop times (real-time clock)
Flow rate (gallons per minute)
Total water volume per event (gallons)
All data was stored securely on-site and delivered automatically via daily summary emails — giving the IAPMO facilities team continuous visibility without manual data retrieval or cloud dependency.
Findings
The fixture-level data revealed patterns in occupant behaviour that would have been invisible at the meter level — including variations in usage frequency, duration, and flow rate across different fixture types and locations throughout the building.
During the monitoring period, inconsistent flow rates and stream patterns were also observed across faucets throughout the building. BluSENSE recommended replacing existing faucet aerators with pressure-compensating models to improve flow consistency and the accuracy of peak flow rate estimates — a straightforward intervention with direct impact on both data quality and water efficiency.
Outcome
The Phase 1 deployment demonstrated that fixture-level monitoring at this scale was not only feasible but highly effective at revealing the behavioural data needed to inform water efficiency planning. The success of Phase 1 led to a proposal for a Phase 2 expansion — a system approximately four times larger, designed to extend monitoring to all 75 fixtures and appliances across the entire building.
The IAPMO project also left a lasting mark on the BluSENSE product line. The hardware challenges solved during this deployment directly shaped the development of BluPULSE — now available as a commercial product for fixture-level pulse monitoring across any building type.
Products Used
BluSENSE custom data acquisition system with early BluPULSE prototype hardware. The commercial BluPULSE product is the direct evolution of the hardware developed for this project.