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FloodStop Systems

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FloodStop System for Washing Machines
FloodStop system for washing machines
FloodStop (FS 3/4-H90) automatically shuts off the water supply to the Washing Machine and sounds an alarm, leaving all other household fixtures and appliances operational. Powered by AC Adaptor/Transformer or Batteries. Output contacts available, which allow the Controller to connect with Alarm, Home Automation or Auto-Dialer systems if desired. Easily installed in ten minutes. 1-Year Manufacturer's Warranty.

Prevent flooding from failed Washing Machines and hoses:
Washing Machines are one of the most damaging appliances within the home. Washing Machine related flooding can happen at any time, from hoses with ruptures or cracked fittings, to internal failures from clamps, valves, pumps, drains and failed switches. Whether at home, at work, or on vacation these flooding events go undetected for hours or even days.

FloodStop (FS 3/4-H90) Components:
  • Motorized Ball Valves (Two valves, 3/4" swivel hose thread union)
  • Control Unit (with Battery Backup 4 X C Size)
  • Water/Leak Sensor (1-1/4" X 7-1/2")
  • AC Power Adaptor (or use 4 X C Batteries as Primary Power Source)
  • Output Contact Wires (2)


  • How FloodStop (FS 3/4-H90) Works:
  • Each FloodStop valve is screwed onto the hot and cold water hose bibs
  • Water/leak sensor is placed on the floor behind Washing Machine
  • Valves stay open until water loss is detected
  • Water on sensor immediately closes FloodStop valves and sounds alarm
  • Valves stay closed until problem is attended to and system is reset


  • Without FloodStop, Flooding Will Continue:
    Unexpected appliance failures cause flooding and water damage, which will continue unabated until the problem is discovered and the water supply is manually shut off.

    With Flood Stop, Property Damage is Avoided:
    Water loss from unexpected appliance failures and hose ruptures are detected by FloodStop's water/leak sensor, and the water supply is automatically and immediately shut off.

    Model # Description Price & Quantity
    FS 3/4-H90 3/4" Hose Threaded Motorized Ball Valves with 90 Degree Downward Outlet (Brass) $129.97
    FS 3/4-H90-10 Ten (10) of the Above FloodStop Systems for Washing Machine - Buy 10 and save even more! $1229.93
    FSAS Additional Sensor for FloodStop Systems - more information $12.99

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    FloodStop System for Water Heaters
    FloodStop system 3/4 inch NPT for water heaters
    FS-3/4-NPT
    compression flood stop
    FS 3/4-C (compression)
    FloodStop (FS 3/4) kit automatically shut off the water supply to the Water Heater and sounds an alarm, leaving all other household fixtures and appliances operational. Powered by AC Adaptor/Transformer or Batteries. Output contacts available, which allow the Controller to connect with Alarm, Home Automation or Auto-Dialer systems if desired. Easily installed in fifteen minutes. 1-Year Manufacturer's Warranty.

    Prevent Water Heaters from flooding your property:
    Water Heaters have a limited life, then leak after years of corrosion. Water Heaters are generally considered a maintenance-free appliance, but they are also one of the single most damaging appliances in the home. Because Water Heaters are continually under pressure, even small pressurized leaks can quickly flood and devastate a home. Whether at home, at work, or on vacation these flooding events can go undetected for hours or even days.

    FloodStop (FS 3/4-NPT) Components:
  • Motorized Full-Port Ball Valve (3/4 inch NPT pipe threaded)
  • Control Unit (with Battery Backup 4 X C Size)
  • Water/Leak Sensor (1-1/4" X 7-1/2")
  • AC Power Adaptor (or use 4 X C Batteries as Primary Power Source)
  • Output Contact Wires (2)


  • FloodStop (FS 3/4-C) Components:
  • Motorized Full-Port Ball Valve (3/4" Compression)
  • Control Unit (with Battery Backup 4 X C Size)
  • Water/Leak Sensor (1-1/4" X 7-1/2")
  • AC Power Adaptor (or use 4 X C Batteries as Primary Power Source)
  • Output Contact Wires (2)


  • How FloodStop (FS 3/4) Works:
  • The FloodStop valve is installed between the Water Heater and its manual shutoff valve
  • Water/leak sensor is placed at the base of the Water Heater
  • Valve stays open until water loss is detected
  • Water on sensor closes FloodStop valve and sounds alarm
  • Valve stays closed until problem is attended to and system is reset


  • Without FloodStop, Flooding Will Continue:
    Unexpected appliance failures cause flooding and water damage, which will continue unabated until the problem is discovered and the water supply is manually shut off.

    With Flood Stop, Property Damage is Avoided:
    Water loss from unexpected appliance failures and supply line ruptures are detected by FloodStop's water/leak sensor, and the water supply is automatically and immediately shut off.

    Model # Description Price & Quantity
    FS 3/4-NPT 3/4" Pipe Threaded - Full-Port Motorized Ball Valve (Brass)
    Works with any 3/4" MIPT supply line
    $102.98
    FS 3/4-C 3/4" Compression - Full-Port Motorized Ball Valve (Brass)
    Works with any 3/4" copper applications
    $109.99
    FSAS Additional Sensor for FloodStop Systems - more information $12.99
    FSTEW Transformer Extension Wires - more information $12.79

    flexible supplies for water heaters

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    FloodStop System for Refrigerators, Icemakers or Water Dispensers
    FloodStop FS-14-C
    FS 1/4-C
    Refrigerator and Ice maker components are small and break easily. Water-line breaks develop from movement, accidental bumping and simple vibration. In many cases a crack in the water-line grows from simple vibrations, eventually and unexpectedly rupturing, and then flooding the property. Whether at home, at work, or on vacation these flooding events can go undetected for hours or even days. This FloodStop automatically shuts off water supply to the refrigerator and sounds an alarm, leaving all other household fixtures and appliances operational. It's easy to install and you'll never have to worry about a leak that will flood your home.

    FloodStop (FS 1/4-C) automatically shuts off the water supply to the Icemaker or Water Filter and sounds an alarm, leaving all other household fixtures and appliances operational. Easily installed in ten minutes. 1-Year Manufacturer's Warranty.

    FloodStop (FS 1/4-C) Components:
  • Motorized Ball Valve (1/4 inch Compression Fitting)
  • Water/Leak Sensor (1.25" X 7.5")
  • AC Power Adaptor (or use 4 X C Batteries as Primary Power Source)
  • Output Contact Wires (2)


  • How FloodStop (FS 1/4-C) Works:
  • The FloodStop valve is connected to the angle stop and supply line
  • Water/leak sensor is placed at the base of the appliance (Icemaker/Refrigerator, Water Filter, etc.)
  • Valve stays open until water loss is detected
  • Water on sensor closes FloodStop valve and sounds alarm
  • Valve stays closed until problem is attended to and system is reset

  • Model # Description Price & Quantity
    FS 1/4-C FloodStop System for Refrigerators, Icemakers or Water Dispensers
    1/4" Compression
    $89.99
    FSAS Additional Sensors for FloodStop Systems - more information $12.99

    flexible supplies for ice makers

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    FloodStop System for Sinks & Basins
    FloodStop system for Sinks/Basins
    FS 3/8-CD
    Sink related leaks are often small and go unnoticed until significant damage is finally discovered. Such a leak will continue to collect under the Sink and then seep between the flooring and sub-flooring. The damage often goes undetected until the floor is visually damp or the smell of mildew is present, at which time the damage and cost to replace is extensive.

    FloodStop (FS 3/8-CD) automatically shuts off the water supply to the Sink, whether caused by a ruptured supply line, leaking garbage disposal or an overflow. Powered by AC Adaptor/Transformer or Batteries. Easily installed in ten minutes. 1-Year Manufacturer's Warranty.

    FloodStop (FS 3/8-CD) Components:
  • Motorized Ball Valves (Two Valves, 3/8" Compression Fitting)
  • Control Unit (with Battery Backup 4 X C Size)
  • Water/Leak Sensor (1.25" X 7.5")
  • AC Power Adaptor (or use 4x C Batteries as Power Source
  • Output Contact Wires


  • How FloodStop (FS 3/8-CD) Works:
  • The FloodStop valves are connected to the angle stops and supply lines
  • Water/leak sensor is placed at the base of the fixture (Sink - Laundry Basin - Tub - etc.)
  • Valve stays open until water loss is detected
  • Water on sensor closes FloodStop valve and sounds alarm
  • Valve stays closed until problem is attended to and system is reset

  • Model # Description Price & Quantity
    FS 3/8-CD FloodStop System for Sinks & Basins
    Works with any valve with 3/8" comp. outlet
    $109.98
    FSAS Additional Sensors for FloodStop Systems - more information $12.99

    flexible supplies for ice makers

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    FloodStop System for Dishwashers or Toilets
    FloodStop system for Dishwashers
    FloodStop (FS 3/8-C) automatically shuts off the water supply to the Dishwasher or Toilet, whether caused by a small continuous leak, broken component, leaking seal, overflow or a ruptured supply line. Powered by AC Adaptor/Transformer or Batteries. Output contacts available, which allow the Controller to connect with Alarm, Home Automation or Auto-Dialer systems if desired. Easily installed in ten minutes. 1-Year Manufacturer's Warranty.

    Prevent water damage from failed Dishwasher or Toilet and Supply Line:
    Dishwasher leaks are often small and go unnoticed until significant damage is finally discovered. Such a leak will continue to collect under the Dishwasher and then seep between the kitchen flooring and sub-flooring. The damage often goes undetected until the floor is visually buckled or warped, at which time the damage and cost to replace is extensive.

    Toilet overflows can be the cause of significant property damage. The actual overflow event typically takes a couple minutes to begin and often goes unnoticed long after the occupant as left the bathroom.

    FloodStop (FS 3/8-C) Components:
  • Motorized Ball Valve (3/8 inch Compression Fitting)
  • Control Unit (with Battery Backup 4 X C Size)
  • Water/Leak Sensor (1-1/4" X 7-1/2")
  • AC Power Adaptor (or use 4 X C Batteries as Primary Power Source)
  • Output Contact Wires (2)


  • How FloodStop (FS 3/8-C) Works:
  • The FloodStop valve is connected to the angle stop and supply line
  • Water/leak sensor is placed at the base of the appliance or fixture (Dishwasher, Toilet, 3/8" Icemaker, etc.)
  • Valve stays open until water loss is detected
  • Water on sensor closes FloodStop valve and sounds alarm
  • Valve stays closed until problem is attended to and system is reset


  • Without FloodStop, Flooding Will Continue:
    Unexpected appliance failures cause flooding and water damage, which will continue unabated until the problem is discovered and the water supply is manually shut off.

    With Flood Stop, Property Damage is Avoided:
    Water loss from unexpected appliance failures and supply line ruptures are detected by FloodStop's water/leak sensor, and the water supply is automatically and immediately shut off.

    Model # Description Price & Quantity
    FS 3/8-C 3/8" Compression - Motorized Ball Valve (Brass)
    Works with any valve with 3/8" comp. outlet
    $93.96
    FSAS Additional Sensors for FloodStop Systems - more information $12.99

    flexible supplies for ice makers

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    Optional Accessories

    Model # Description Price & Quantity
    FSAS Additional Sensors for FloodStop Systems - more information $12.99
    FSTEW Transformer Extension Wires for Water Heater FloodStops - more information $12.79

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    Flood Stop Systems - Typical Installation Examples
    Your installation requirements may be different
    Flood Stop system - water heater installation       Flood Stop system - washing machine installation
    Water Heater       Washing Machine


    A whole world of plumbing


    questions about how flood stop systems work "How does it work?"
    answers about how flood stop systems work Simple! You'll install a FloodStop motorized ball valve(s) upstream of each supply line and place our water sensor on the floor behind the unit that needs detection. If water leaks due to a broken line or the failure of ANY internal component of your plumbing fixture, the control unit tells the motorized ball valve(s) to shut off the water and sound an alarm.

    questions about leak/flood prevention "So these systems can prevent leaks or flooding?"
    answers about flood stop systems Yes they can; whether it's a small leak or large flood, FloodStops shut off the water at the appliance. They protect against broken lines, bursting lines and failure of internal components of your plumbing fixture.

    questions about no electricity running "If there is no electricity running to the valve (either because they haven't been hooked up or the sensor has touched water), are the valves normally open or closed?"
    answers about no electricity running, use batteries In their normal position, the FloodStop valves are open and will allow water to pass through; once water touches their sensor, the motorized ball valve is tripped and the valves are closed. The valve(s) will remain closed until the sensors are dried and the reset "Open" button is pressed. The Controller has a battery port for 4 X C size batteries, which will serve as a battery backup in case of a power outage. The same batteries will serve as the primary power source if a nearby electrical outlet is not available (battery life 1 year).

    questions about FloodStop shutting off whole house water "Does the FloodStop system shut off water to the whole house?"
    answers about flood stop systems No, this is a point of use product; it only shuts the water off at the source of the leak. Why shut off the water to your whole house if the cause of the problem is just at the washing machine, for instance? Whole house systems are much more expensive and usually require a plumber to install.

    questions about flood stop systems detecting leaks "What should I do after the system has detected a leak?"
    answers about flood stop systems detecting leaks If a leak has occurred, turn the manual valve(s) to the off position, investigate and repair/stop the leak, dry the sensor, and reset the controller by pressing the "Open" button.

    questions about installing flood stop systems "Are FloodStop systems difficult to install?"
    answers about installing flood stop systems No, if you can install a garden hose, you can install FloodStop. Installation takes 5 to 10 minutes, and your home will be protected against many sources of water damage.

    questions about using transformer extension wire "Why would I need to use the transformer extension wire?"
    answers about using transformer extension wire Unlike the washing machine and the icemaker, the water heater is not always located next to an electrical outlet, and so you may need to use the 15-foot-long low-voltage extension wire.

    questions about additional sensors "Why would I need an additional sensor?"
    answers about additional sensors You can increase your area of protection by adding extra sensors near your fixtures, such as behind your dryer or laundry tray/sink. Additional sensors can also be placed in your water heater's drain pan, as well as on the floor nearby (in case a leak sprays outside the pan); also, you may choose to install a sensor under your icemaker valve, another behind the refrigerator and a third near your icemaker's filter (if you have one).

    questions about braided hoses "What about braided hoses, aren't they burst proof?"
    answers about braided hoses You should use braided hoses whenever you can (especially on your washing machine), and take every precaution to avoid water damage, but hoses are not the only source of flooding. And, braided hoses are not burst proof, but only burst resistant. There are a wide variety of clamps, valves, pumps, drains, etc. inside many fixtures that can fail. (FloodStop was designed after the inventor suffered a home flood due to a switch failure that did not tell his washing machine when to stop filling with water. Water continued to run into the washer and flooded the house for 3 hours before it was discovered.)

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