Water Stop: Automatic Mechanical Flow-Measuring Shutoff Valve

Point-of-Use Flood Protection for Homes and Businesses

The Water Stop is a 100% mechanical safety shutoff valve designed to stop catastrophic water damage before it can start. Unlike standard floor sensors that only alert you after a room is already flooded, the Water Stop acts proactively by stopping the leak upstream of the leak source or failure.

Because it is a point-of-use device, it provides targeted protection. If an appliance or supply line fails, the Water Stop shuts off water exclusively to that specific application. The rest of your home or building retains full, uninterrupted water while the threat is  neutralized.

Key Water Stop Features

• Targeted Point-of-Use Isolation: Designed for focused protection, the device is point-of-use and installed directly upstream of the supply line, appliance, or application you are looking to protect. This means the Water Stop halts water flow only at the problematic supply line, appliance, or application. It prevents property damage without shutting down the main water system, allowing business operations or household routines elsewhere to continue as normal.

• 100% Power-Free Operation: Powered strictly by reliable mechanical components. It requires no electrical wiring, no batteries, and no Wi-Fi connections, ensuring fail-safe protection even during a total power outage.

• Continuous Volumetric Tracking: Internal mechanical gears measure the volume of continuous water flow. The moment an appliance finishes its normal fill cycle and the water stops, the device instantly resets its internal measurement back to zero. If a leak or malfunction causes an uncontrolled running water situation that exceeds your chosen shutoff setting, the device automatically activates and stops the water flow.

• 10 Adjustable Settings: Features 10 user-selectable dial settings ranging from 1.32 to 13.2 gallons (increasing in 1.32-gallon increments). This allows homeowners and maintenance techs to easily set the shutoff point just above the appliance's normal water usage, ensuring maximum flood protection without interrupting everyday operation.

• Quality: Manufactured to industrial standards with high-grade, corrosion-resistant materials, ensuring long-term operational reliability and a true "set-and-forget" implementation. Product life is greater than 79,000+ gallons. 

• Quick Reset: If the device activates, it can be easily reset by shutting off the incoming water and pressing the protruding red pin to re-seat the internal valve. An optional Reset Accessory tool is also available to make resetting effortless and convenient. The Reset tool allows the Water Stop device to be reset without needing to turn off the water or disconnect the device from the supply line in order to access. 

*A minimum flow rate of 0.50 GPM is required to activate the valve. Extremely slow, pinhole drips below this threshold may not trigger the mechanical shutoff.

Primary Applications

The Water Block serves as a universal, localized safeguard across a broad spectrum of point-of-use plumbing infrastructures:

• Commercial beverage systems, coffee stations, and espresso machines

• Water filtration, reverse osmosis (RO) systems, and water fountains

• Refrigerators, ice makers, and under-sink water lines

• Point-of-use residential appliances (washing machines and dishwashers)