Automatic Water Shutoff When Vacant
The valve closes when the bathroom is not in use, helping limit continuous water flow from running toilets.
Reduce Water and Sewer Bills
The Toilet Scrooge™ automatically controls the toilet’s water supply based on bathroom occupancy, helping limit continuous water flow from running toilets when the bathroom is vacant.
Reduce toilet water waste and help lower water and sewer costs across your property.
The Problem
Running toilets, faulty fill valves, leaking flappers and other silent toilet leaks can waste water long before your maintenance team knows there is a problem.
In a multifamily property, one running toilet may go unnoticed for hours or even days. Across multiple units, that wasted water can increase water and sewer bills and create more work for maintenance teams.
The Toilet Scrooge™ helps limit that waste by automatically closing the toilet’s water supply when the bathroom is vacant.
The Solution
The Toilet Scrooge™ uses a motion sensor to control when water is available to the toilet.
The motion sensor detects that someone is present and opens the valve.
For toilets that run often, see our toilet calibration service.
Water remains available while the bathroom is in use, allowing the toilet to operate normally.
When the bathroom becomes vacant, the valve closes and limits continuous water supply to a running toilet.
Its Features
The Toilet Scrooge™ combines automatic water control with water-powered technology to help reduce unnecessary toilet water use across multifamily properties.
Motion-Activated Water Control
The valve opens when a user is present and closes after the bathroom becomes vacant. Residents do not need to remember to manually shut off the toilet’s water supply.
Energy-Harvesting Power
The internal water wheel uses water flow during flushing to recharge the device’s power source, reducing routine battery maintenance.
Tank-Toilet Compatibility
The Toilet Scrooge™ uses 3/8-inch fittings on both sides and can be installed under tank-filled toilets with compatible hose-line or hard-line connections.

A Smarter Approach
A leak detector or toilet overflow sensor is generally designed to alert someone when a problem is detected. The Toilet Scrooge™ takes a different approach. It controls the toilet’s water supply itself.
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| Feature | Toilet Overflow Sensor / Leak Detector | The Toilet Scrooge™ |
|---|---|---|
|
Alerts you when a problem is detected |
Controls when water is available to the toilet |
|
May require someone to respond |
Automatically closes when the bathroom is vacant |
|
Focuses on sensing and alerts |
Focuses on controlling the water supply |
|
Water may continue flowing until action is taken |
Helps limit continuous water flow when the toilet is not in use |
Know The Difference
If the manual angle stop, supply line, or connection is leaking, the damaged plumbing component should be inspected and repaired. The Toilet Scrooge™ is designed to limit continuous supply to the toilet when the bathroom is vacant; it is not a substitute for repairing a leaking valve or fitting.
Not every toilet water waste problem comes from a running toilet.
Water keeps flowing inside the toilet because of a worn flapper, faulty fill valve, or another internal issue. The Toilet Scrooge™ helps limit water flow when vacant.
Water leaks from the shutoff valve, supply line, fitting, or connection. The Toilet Scrooge™ is not a substitute for repairing damaged or leaking plumbing components.
Water rises or spills from the toilet because of a drainage or toilet problem. The Toilet Scrooge™ helps limit water supply when the bathroom is vacant.
Manage Installations Easily
Use the Water Scrooge App to organize building/unit records, assign installation work, document field notes and photos, monitor rollout progress, and review installation reports.
Track Installations by Building and Unit
Keep installation records organized so you can see where devices have been installed.
Record Installation Details
Document field notes, photos, and other installation information for individual units.
Confirm the Valve Is Working
Use the valve function test after installation to help confirm that the Toilet Scrooge™ is operating correctly.

Take advantage of the Toilet Scrooge automatic toilet leak prevention system and protect your property from costly water waste.
Proven Benefits
A simple, reliable way to help reduce toilet water waste, lower ongoing water and sewer costs, and make leak prevention easier across your property.
The valve closes when the bathroom is not in use, helping limit continuous water flow from running toilets.
Water is available while someone is using the bathroom without requiring residents to operate a manual valve.
Water flow during flushing helps recharge the device’s power source, reducing routine battery maintenance.
The Toilet Scrooge™ can be installed in minutes and does not require hard wiring.
Stop Continuous Toilet Water Waste
Use your building data to estimate potential water and sewer savings, or talk to our team about using The Toilet Scrooge™ across multiple units.
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Common Questions
An automatic toilet shut-off valve controls water supplied to a toilet without requiring someone to manually turn the toilet’s angle stop on and off. The Toilet Scrooge™ uses bathroom occupancy to determine when the toilet should receive water.
A motion sensor detects when someone enters the bathroom and opens the valve so the toilet can receive water normally. After the bathroom becomes vacant, the valve closes and helps limit continuous water supply to a running toilet.
No. A toilet overflow sensor detects rising water levels or potential overflow conditions and may trigger an alert. Toilet Scrooge™ works differently. It automatically shuts off the toilet's water supply when the bathroom is unoccupied, helping prevent continuous water waste from running toilets without requiring someone to respond to an alert.
The Toilet Scrooge™ is designed for tank-filled toilets and has 3/8-inch fittings on both sides. Installation may use compatible hose-line or hard-line connections. Check the product specifications before installation to confirm compatibility with your toilet.
The device uses a miniature water wheel to harvest energy from water flow during flushing and recharge its power source. This helps reduce routine battery replacement and maintenance.
If the manual angle stop, supply line, fitting, or connection is leaking, that plumbing component should be inspected and repaired. The Toilet Scrooge™ helps control the water supplied to the toilet but is not a substitute for repairing damaged plumbing.
When choosing the best toilet shutoff valve for rental properties, landlords should consider five important factors:
Toilet Scrooge™ offers automatic, motion-activated water control with a water-powered design, making it a practical option for multifamily properties.
According to the U.S. EPA's WaterSense program, a running toilet can waste around 200 gallons of water per day, leading to higher water bills. See how The Water Scrooge™ helped a 46-unit building reduce water consumption by 53.7% in our 144 East 22nd Street case study.