364 West 51st Street, Manhattan
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This building looked fine—but one toilet was wasting $30,000 a year.

~$30,000

Annual Cost Avoided

65%

Reduction in Water Use

1

Running Toilet (Unit 5E)

2,623 gal

Saved Per Day

Daily water usage chart showing a ~4x spike from the running toilet in unit 5E, then a sharp return to normal after Runwise flagged it
Daily water usage spiking to nearly 4x normal when unit 5E's toilet began running, then returning to normal within days of the Runwise alert.

Challenge

“Fine” can be temporary

This 15-unit Manhattan rental, managed by Big Apple Management, was running below the average for similar properties — until a single toilet in unit 5E began to run and daily water use spiked to nearly 4x normal, around 6,575 gallons a day.

Solution

How Runwise caught it

Smart Toilet Monitoring flagged the spike immediately and traced it to unit 5E, where a broken flush handle had left the flapper loose in the tank. The plumber replaced the handle and flapper, and usage returned to normal within days.

Results

Monitoring as insurance

Left unchecked, that one running toilet was on pace to cost about $30,000 a year — in a building that looked perfectly efficient the week before. Even normal buildings are one failure away from a five-figure leak, and Runwise is what catches it in days instead of months.