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Flow-Rate Based Water Leak Detectors


We offer 3 volume-based systems, addressing a variety of residential and commercial applications (listed below). Scroll down for full product details.

To order, or if you have questions, call us at 1-800-318-4159. WaterBlock and YdroStop can also be ordered online - click on their product pages at the bottom of this page.

Volume-Based Water Leak Detectors we offer:

  1. Point-Of-Use Automatic Shutoff Valve: WaterBlock
  2. Whole-House Automatic Shutoff Valve: YdroStop
  3. High-Volume Commercial Leak Detection Systems: Aqualeak WG Series

1. Point-Of- Use Automatic Shutoff Valve: WaterBlock

Overview - Click on product listing at bottom of this page for further information

WaterBlock Excess Water Flow Shut-Off Valve

WaterBlock excess water-flow shut-off valves help prevent water damage by shutting off the water to an appliance when the volume reaches a preset level. Install them in the water lines that feed your plumbing fixtures or appliances, for example drinking fountains, ice makers, or dishwashers. WaterBlock measures the amount of water flowing through the water line; if a continuous flow of water exceeds your preset volume, WaterBlock will then shut off the water to that fixture. The water then remains turned off until you reset WaterBlock.

If a continuous flow of water ends before triggering your preset maximum volume level, WaterBlock automatically resets its measurement back to zero in preparation for the next water flow cycle, allowing for continuous water flow up to the limit that you set.

For instance, assume you set 5 gallons as your continuous flow limit. When the water runs, WaterBlock would count the volume of continuous water flow. The water would continue to run as long as it did not exceed 5 gallons of continuous flow. However, as soon it reached 5 gallons continuously, WaterBlock would shut off the water. If the water flow stopped before reaching 5 gallons, WaterBlock would reset its measurement back to zero and begin counting again the next time that water starts running, thus continuing the cycle.

Features

  • WaterBlock does not require electric power. All it needs to operate is water flowing through it.
  • It can be used in both cold and hot water (up to 158 degrees Fahrenheit)
  • WaterBlock is a Point of Use water shutoff system, to be used in conjunction with fixtures like ice makers, toilets, water coolers, coffee makers, or dishwashers.
  • Note: WaterBlock is not intended to function as a whole house shutoff valve. Instead, you install it in the water line feeding a particular fixture or appliance. WaterBlock must be mounted vertically, with water flow either up or down. For whole-house shutoff, see YdroStop, below.

Example:

WaterBlock Reset Unit

Lets say you install WaterBlock into the water line that feeds a coffee maker, setting its limit to 1 gallon of continuous water flow, since this hypothetical coffee maker uses 2 quarts of water per brewing cycle. Normally, the coffee pot draws its 2 quarts of water and then turns the water off. As the water flows, WaterBlock counts its volume; when it stops at 2 quarts, WaterBlock resets its count back to zero.

However, if the coffeemaker malfunctions and fails to turn off the water, WaterBlock will automatically turn it off for you once the continuous flow of a cycle reaches 1 gallon. It will then keep the water turned off until you reset it. By shutting off the water, WaterBlock helps to prevent or minimize what could have been extensive water damage if the malfunctioning coffeemaker had allowed the water to stay running, soaking the surrounding kitchen area.

Optional Reset Unit

WaterBlock is available with or without an external reset unit. The reset unit makes it quick and easy to reset a WaterBlock valve after shutoff. This is especially useful for situations in which excess water flow occurs regularly. Without the external reset unit, you can reset WaterBlock by removing the outlet fitting and pressing an internal button.


2. Whole-House Automatic Shutoff Valve: YdroStop

YdroStop Automatic Shutoff Valve

Overview - Click on product listing at bottom of this page for further information

  • YdroStop works like a fuse in your plumbing system to reduce the risk of serious flooding in the event that a pipe bursts or a faucet is left open.
  • YdroStop shuts off a home’s water supply if it detects persistent continuous water flow, a leak, or a burst pipe.
  • Ideal for houses, apartments, vacation rentals, and small commercial buildings.
  • When it detects a sudden break in a water pipe, YdroStop shuts off the water supply quickly.
  • In response to continuous water flow (leaks, open faucets, etc.), YdroStop shuts off the water supply after a pre-set amount of time.
  • Prevents unnecessary water consumption due to leaks or open taps, saving money and helping to protect the environment.
  • Does not require electricity to operate. No need to monitor battery life or worry about power outages.

Sizes Available and Optional Pre-Filter

  • Standard Volume, model HS2800: Accommodates flow rates between 7 to 750 gallons-per-hour (GPH); 25 to 2800 liters-per-hour (L/H)
  • High Volume, model HS4000: Accommodates flow rates between 7 to 1050 GPH; 25 to 4000 L/H
  • Optional Pre-Filter available, model #38500: Pre-filter is necessary for use with steel or galvanized pipe and/or dirty water sources, for instance in well systems, ponds, etc.

Operation:

  • YdroStop operates by detecting water pressure changes. If it registers a large difference in pressure (broken pipe, etc), it shuts off the water supply quickly.
  • During normal water consumption, a small difference in pressure occurs, which then activates the YdroStop’s timing mechanism. If continuous water consumption exceeds a preset time (leak, open tap, etc) YdroStop will then shut off the water supply. The timer can be set from 15 minutes to 2 hours.
  • After the open faucet has been closed, or the leak has been repaired, YdroStop will automatically reset (in automatic mode) after about 20 seconds, allowing water to flow again. YdroStop can also be reset manually.
  • After it resets, YdroStop will re-start its timing mechanism from zero the next time water is consumed.
  • During normal water consumption the user will not be aware that YdroStop is installed.

Applications:

  • Residential: Houses, apartments, vacation properties
  • Commercial: Small retail stores, hotels/motels, restaurants, etc.
  • Municipal: Small schools, offices, government buildings, etc.

Features:

  • Adjustable timing mechanism, configurable from 15 minutes to 2 hours.
  • Automatic reset, once water consumption is stopped.
  • No electricity required for operation. No need to worry about batteries or power sources.
  • Simple installation – immediately after the water meter.
  • Materials comply with international standards for drinking-water quality.
  • Includes a non-return valve.

3. High-Volume Commercial Leak Detection Systems: Aqualeak WG Series

Overview - Click on product listing at bottom of this page for further information

  • The Aqualeak WG1 and WG2 are volume-driven leak detection systems that use water meters to monitor water flow.
  • WG1 is a single-zone system and WG2 is a 2-zone.
  • Designed for commercial and industrial facilities.
  • Both systems are programmable, with audible alarm.
  • Can be used with a BMS to monitor water consumption. Can identify different flow rates.
  • Can be combined with optional valves to shut off the water supply in the event of a leak.

Features

  • The WG1 system is comprised of a WG Control Unit with a display connected to a pulsed output water meter.
  • The WG2 system is comprised of a WG Control Unit with a display connected to: 1) a turbine water meter positioned at the boundary adjacent to the utility meter, and 2) a second water meter where the mains cold water first comes into the building.
  • Both WG1 and WG2 systems can be used together to cover additional points.
  • The systems operate by monitoring the number of pulses given out by the pulse reader attached to the water meter.
  • Can monitor for specific volumes of water at particular times of day. If this set volume is exceeded, the system will signal the alarm.

Typical Applications:

  • Office buildings
  • Factory buildings
  • Schools
  • Hospitals
  • Prisons
  • Other municipal buildings

Products: Click on product picture for additional information.

Point-Of-Use Automatic Shutoff Valve: WaterBlock

WaterBlock Point-of-Use Excess Water Flow Shut-Off Valve

  • Excess water flow shut-off valve; Operates automatically.
  • Helps to prevent or minimize water damage from a malfunctioning appliance by shutting off the water flow if its volume becomes excessive.
  • Does not require electric power. All it needs to operate is water flowing through it.
  • For applications that do not exceed 13 gallons per continuous water flow cycle.
  • Ideal uses include: washing machines, dishwashers, icemakers, drinking fountains, or any water line that would not normally exceed 13 gallons of continuous water flow.
  • Available with or without external reset unit.
  • Free shipping to the continental USA

WaterBlock Optional Reset Unit

  • Reset unit makes it quick and easy to reset a WaterBlock valve after shutoff. This is especially useful for applications in which you expect to reset the water flow often.
  • Without the external reset unit, you can reset WaterBlock by removing the outlet fitting and pressing an internal button.
  • Note: WB-13 uses one reset unit.
  • Free shipping to the continental USA

Whole-House Automatic Shutoff Valve: YdroStop

YdroStop Non-Electric Whole House Water Shutoff System

  • YdroStop works like a fuse in your plumbing system to reduce the risk of serious flooding if a pipe bursts or a faucet is left open.
  • YdroStop shuts off the water supply if it detects a persistent flow, leak, or burst pipe.
  • Ideal for houses, apartments, vacation rentals, and small commercial buildings.
  • When it detects a sudden break in a water pipe, YdroStop quickly shuts off the water supply.
  • In response to continuous water flow (leaks, open faucets, etc.), YdroStop shuts off the water supply after a pre-set amount of time.
  • Does not require electricity to operate. No need to worry about batteries or power sources.
  • Free shipping to the continental USA.

High Volume Commercial: Aqualeak WG Systems

Aqualeak WG1 Single Zone Commercial Water Leak Detector

  • Single input, volume-based leak detection system using a pulsed output water meter.
  • Designed for commercial and industrial facilities.
  • Programmable, with audible alarm.
  • Can be used with a BMS to monitor water consumption. Can identify different flow rates.
  • Can be combined with optional valves to shut off the water supply in the event of a leak.

Aqualeak WG2 Two-Zone Commercial Water Leak Detector

  • Two zone, flow-based water leak detection system using pulsed output water meters.
  • Designed for commercial and industrial facilities.
  • Programmable, with audible alarm.
  • Can be used with a BMS to monitor water consumption. Can identify different flow rates.
  • Can be combined with optional valves to shut off the water supply in the event of a leak.