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FAQ

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Where should I plug in the transformer?
Any non-switched, non GFI, 120VAC interior outlet will do the job. The transformer should not be plugged into an outlet located outdoors where it could be exposed to severe weather conditions.
How do I adjust the brightness of the screen?
Carefully remove the panel from the wall by pushing up in the bottom center of the panel. On the back of the panel look for a square blue button with a slotted dial located on the right side about half way up. With a small screwdriver, carefully turn the dial clockwise to increase the brightness.
What do the lights on the back of the panel mean?
There is a MOD PWR light that should be green. This indicates the panel is getting power. There is a MOD ERR light which should be off. This light may blink but will remain on if there is a problem with the panel. There is a MOD COM light which should blink indicating the panel is talking with the Leak Defense main unit.
How can I tell if my wired or wireless flow switch is working?
Go to program then system status and look at the line that says EXP INP. When water flows through the flow switch this line will change from  000 000 to 001 000. Also note that the minutes next to TRIP IN will not change when water is flowing through the flow switch.
How can I tell if my point of leak sensor is working?
Simply touch your damp fingers to the two metal brads and the system should alarm.
What do I do if the panel has no power?
After unplugging the Leak Defense System check to make sure the red and green wires are properly connected to the back of the panel and make sure they are properly connected to the pigtails coming from the unit. If you used the yellow gel connectors make sure the wires are inserted firmly by pulling on them. You may have to use regular wire nuts in place of the yellow gel connectors.
Can the time to alarm be adjusted?
Yes, the system has a home and away mode. The time to alarm can be easily adjusted in both modes.
Can the Leak Defense System be used in commercial applications?
Yes, the Leak Defense System is adaptable to most residential and commercial applications. The Leak Defense System can be installed on pipe sizes up to 3” in diameter.
What kind of maintenance does the Leak Defense System require?
We suggest using the Control Panel to turn the water off and then back on monthly to ensure the valve is moving freely. We also suggest that an “Alarm Condition” be created occasionally to check the systems functionality – but the Leak Defense System really does not require any maintenance.
What do I do if my system has a lot of bounce?
If your house is located on a hill or you don’t have a pressure regulator installed you may have to install a check valve either before or after the Leak Defense System. This prevents water from moving backwards which is sensed as flow. You can also simply re-calibrate your system to not reflect the bounce.
What do the wires that connect the unit to the panel do?
 The red and green wires carry the power and the black and white carry the data.
What does the Zero Flow and Span settings do?
The Zero Flow and Span settings allow the installer to specifically set the Leak Defense System sensitivity for each installation. This process enables the bar graph to reflect flow levels with the greatest degree of accuracy.
I noticed in the Installation Guide it says not to solder the pipe adapters after the valve box is in place. Why is this a potential problem?
The heat from the soldering torch will destroy the sensor probes located in the pipe below the valve box. If the sensor probes are damaged, the entire valve box will need to be replaced.
Where in the home should I mount the Control Panel?
The Control Panel should be installed near the most frequently used door of the residence, inside the home so that the alarm can be easily heard. It is often installed near the home's existing alarm panel.
How long does a typical installation take?
A complete installation of the Leak Defense System is comprised of three key elements. First, the plumbing must be completed; second, the wiring and programming of the system settings must be completed; and third, the installer must take time to explain the systems functionality to the owner. Obviously, all of this can vary from installation to installation. Two man crew installations seem to be most efficient.  As you become accustomed to installing the Leak Defense System, the amount of time required for each installation will obviously decrease.
Will I need any special tools or supplies to install the Leak Defense System?
The majority of the tools and supplies needed to complete a Leak Defense System installation are items a plumbing/HVAC installer will typically stock in their service vehicle. You may view a complete list of Tools and Supplies on page 4 of the Installation Guide located on the “Contractors” page of this website.
I am a Plumber not an Electrician; will I be able to complete the wiring portion of the installation myself?
Yes! Wiring the Leak Defense System can be easily accomplished by following the step by step instructions and illustrations provided in the Installation Guide. If you have installed the low voltage systems for HVAC or for tankless water heaters you should have no problems with the LDS. Please contact our support staff at 1.866.410.1134 if you have any specific questions during the installation.
My wholesaler doesn’t stock the Leak Defense System. Where can I purchase them?
Please call our toll-free Customer Service Hotline at 1.866.410.1134 and a Sentinel Hydrosolutions representative will be happy to help you locate a local wholesaler.
What do I do if the system shows no flow?
After unplugging the Leak Defense System check to make sure the black and white wires are properly connected to the back of the panel and make sure they are properly connected to the pigtails coming from the unit. If you used the yellow gel connectors make sure the wires are inserted firmly by pulling on them. You may have to use regular wire nuts in place of the yellow gel connectors.
Will my Homeowners Insurance carrier give me a discount if I have a Leak Defense System installed in my home?
Many Homeowners Insurance companies do offer premium discounts for policy holders who have leak detection devices installed in their homes. The discounts are determined by the Department of Insurance of each state. It is likely that your insurance carrier would offer one as well.
If for any reason I want to shut the water off to my home completely will I be able to control this using the Leak Defense System?
Yes, either by selecting the Turn Water Off setting on the Control Panel or you can use the manual shut off knob located on the motorized valve box.
What if I am in the shower and exceed the programmed flow/time limit will the Leak Defense System shut the water off before I am done?
In the HOME mode the Leak Defense System has a built in warning feature which activates 1 minute prior to shutting the water off. During this warning period, the system will sound an audible alarm in addition to reducing the amount of water flow in the plumbing system. The diminished water flow will indicate to the user that the time limit has been exceeded and the water is about to be turned off. The Leak Defense System can be reset at any time during this warning period by simply stopping all water flow for approximately 1 minute. The system will then automatically reset and restore the flow to the normal level.
How does the Leak Defense System work?
The Leak Defense System has a thermodynamic sensor that senses the flow of water. The continuous flow of water over time causes the system to alarm and turn the water off to your home.
What is the Leak Defense System?
The Leak Defense System is a system of integrated components that monitors the flow of water into your home and stop that flow should there be a major leak or plumbing break.
My panel is dirty, and there are several finger print smudges. What can I use to clean it?
A soft damp cloth will be sufficient. Just be careful to not activate any buttons while you are cleaning the panel. If you like, you can simply unplug the Leak Defense System transformer while you clean the screen. It has a built in battery backup memory which will retain all of your system settings. Otherwise you may wish to place the system in Stand-by or Off mode while cleaning.
I’m leaving on a trip, and I don’t want any water trouble. How can I turn my water off completely?
You can easily turn the water to your home off at the Control Panel by pushing the turn water off button.
The alarm went off while the system was in HOME mode. What should I do?
Follow the steps defined on the Control Panel Trouble Shooting screens to determine the cause of the alarm. Note - If you have eliminated the possibility of a leak, it is likely your Flow to Alarm and/or Time to Alarm settings are simply set too conservatively for normal water use in your home. You may adjust these settings by pressing the PROGRAM button on the Main Screen of the Control Panel and following the menu prompts.
The alarm is going off. What should I do?
The alarm will only trigger for one reason – The water flow to your home has exceeded the preset limit continuously for more than the amount of time that was programmed into the Leak Defense System. If there is an obvious water leak, call your Leak Defense System Installer or local plumber. If you don’t see any obvious signs of a leak then follow the prompts on the Control Panel to help you to determine the best course of action.
My water is off. How do I turn it back on?
If the power is on, follow the steps displayed on the screen to return your Control Panel back to the Main Screen. At the Main Screen, simply press TURN WATER ON. If the backlight on your Control Panel does not turn on when touched, this indicates that your Control Panel has somehow lost power and you will need to turn the water on manually using the knob located on top of the LDS Valve Box. The Valve Box is the portion of the system installed in your water main where it enters your home.
My Leak Defense System goes into alarm mode frequently. Why does it do that and what should I do to fix it?
If your Leak Defense System goes into alarm regularly and you have eliminated the possibility of a leak, it is likely that your Flow to Alarm and Time to Alarm settings are simply set too conservatively for the typical water demands in your home. You may adjust these settings by pressing the PROGRAM button on the Main Screen of the Control Panel and following the menu prompts.
Who should own a Leak Defense System?
Any home owner that would like the peace of mind of knowing that their home is protected from catastrophic water damage due to a broken water pipe--be it their primary home or vacation home. The system also works well in commercial settings.
What is the process to purchase a Leak Defense System?
Call Sentinel HydroSolutions at 760-884-8300. The representative at Sentinel HydroSolutions will then recommend a plumber or work with your existing plumber to do an assessment of your home to properly determine the size of the Leak Defense Unit needed and the appropriate installation location. The assessment will also help to determine any additional normal flows of water, such as an automatic pool fill or water filtration system. After the assessment is complete the plumber will co-ordinate with you to set a date and time to install and program your Leak Defense Unit.
I’m pretty handy around the house. Can I purchase a Leak Defense System and install it myself?
You could. However, the Leak Defense System's limited warranty stipulates that it must be installed by a licensed plumber.
How much effort is required to operate the system?
The Leak Defense System is very easy to operate and requires little more effort than pressing your garage door opener. When you leave your home you will simply press the AWAY button on your Control Panel then when you arrive back home you will press the HOME button. Even if you forget to put the system into AWAY when you leave the home is protected.
Where should the Control Panel be located in my home?
We suggest the Control Panel be located inside the home near the most often used entrance/exit or near your security alarm panel. This allows for easy accessibility and interaction with the system during your daily routine.
Where is the system installed in the water line?
The motorized ball valve and housing fit are inserted in to the main water line where it enters the home and can fit inside of a standard size stud wall. It is installed downstream of the water meter, irrigation lines and any automatic fire or sprinkler systems.
What is the minimum size leak the Leak Defense System can detect?
Since the Leak Defense System monitors flow without moving parts that can wear out or corrode, it is the most sensitive system available. The sensitivity will vary in each installation due to a number of factors. The homeowner can easily adjust sensitivity as desired.The system is not designed to catch intermittent leaks.
How can the Leak Defense System be customized to our family’s water usage?
A family with two teenagers might program their system to ignore water to flow for up to 30 minutes in the HOME mode to accommodate long hot showers. Another household comprised of two conservationists might program their system to allow water flow for only 10 minutes in the HOME mode. In the AWAY mode both families may program the system to only allow water flow for 2 minutes, just long enough for toilet to fill or Ice Maker to cycle. The system would then recognize any water flow which exceeded these settings as a possible leak triggering the alarm and signaling the system to shut off the water flow to the home.
How does the Leak Defense System differentiate between water flow caused by regular water usage and water flow caused by a leak?
The Leak Defense System has many features that can easily be customized to meet the needs of an individual household. The most basic features are called the HOME and AWAY modes. To customize these features, the homeowner simply tells the system what is an allowable flow level for a designated length of time while they are home and another for when they are away.
Can the Leak Defense System be connected to my home security system?
Yes, the Leak Defense System can tell your home security system if a leak was detected and water was shut off to your home. The nice thing is that the water is shut off when it alarms so the house is protected from any further damage no matter how long it may take someone to get to the house.
There is no water flowing, but the bar graph on my Control Panel shows flow. What should I do?
Many homes have some continual back and forth flow in their main water line, much of which is caused by the Hot Water Tank. You can check this effect by turning off the valve which controls water flow in to your tank. If this has no effect, complete the following steps. First, ensure a slow processing automatic appliance such as a reverse osmosis water filter or humidifier is not cycling. Second, follow the steps defined in the Control Panel Trouble Shooting screens (press PROGRAM, SETTINGS, F1 to access the Trouble Shooting screens). After you have completed these steps, if your bar graph continues to indicate water flow, you most likely have a plumbing leak in an obscure location. In this case you should call a plumber or Sentinel Hydrosolutions 1-866-410-1134 who will help you determine a course of action.