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CORAL is a very unique AI based system. It has been developed to provide the most effective, around the clock, protection. Below you can find answer to many of the frequently asked questions. For more information, please feel free to contact us at [email protected]

What alerts does the CORAL system generate?

The CORAL system alerts you in two cases:
- Entry Alert – As soon as it “sees” a child or a person entering the pool for the first time (after the pool was completely empty for several minutes) the CORAL will sound a short alert to let you know that someone is in the pool.
- Drowning Risk Alert: As soon as CORAL “sees” a motionless child / person, with the head under the surface of the water, it will start sounding a loud and escalating alarm

I enter the pool but do not get the Entry Alert. Why?

The Entry Alert will sound only after the pool was completely empty and quite for at least 5 minutes. This ensures that when kids are in and out the pool you will not get constant alerts.
In addition, for CORAL to detect entry, it must detect at least half body in the water (waist down) for about 5-10 seconds.

If you want to "test" the Entry Alert, please enter the pool after it was completely empty and quite (no significant water motion) for at least 5 minute, with half body in (water up to your waist) and wait about 10 seconds

I tried getting a Drowning Alarm but the alarm does not go off.

A person who swallows water and is about to drown is typically sinking to the bottom and once at the bottom he/she is motionless. Completely motionless. Therefore faking drowning in order to test the CORAL system is NOT trivial.
In order to do that you need to stay completely! motionless at the bottom of the pool for about 12-15 seconds.
The best way to fake drowning and stay at the bottom is to hold on to some weight, and count 15 secs only AFTER you stabilize yourself and become motionless at the bottom. It might take several trails, but rest assured that if you indeed stay motionless for 15 seconds the alarm will go off.

Where do the alerts and alarms sound?

All alarms and alerts sound in the pool unit, at the home unit, and are sent as push notifications to all paired smartphones App along with an image of the event that triggered the alarms

How is CORAL different than other pool safety devices like fences, covers, nets, or pool alarms?

Safety is all about layers.
Fences, covers, nets, wrist bands, and pool alarms are all very important.
But, all these safety means are designed to prevent unauthorized access to the pool. Unlike all of these CORAL is working also when you and the kids are in the pool - that is a new layer of safety that never existed before.

Some say "teach your kids to swim - that is all you need". Is this correct?

Teaching swimming is indeed very important! But, we need to remember 2 things:
1. Even if your kids were taught to swim, what about all the the others? Their cousins, your nephews, nieces, friends? Can you make sure everyone who comes next to your pool knows how to swim?
2. Even swimmers can drown, especially at young age. The fact that a 4 year old child knows how to swim sometimes may even generate a false sense of confidence to the parents, while the child will not always be able to handle stressful situations. More so, 45% of all people who drown are age 7 and above, and most of them are good swimmers.
CORAL is named after two 12 year old girls, Koral and Orr, good swimmers, who drowned together in a backyard pool while an adult was just yards away in the house.

How far can the home unit be from the pool unit ?

The home unit should be placed in the house, at the wall closest to the pool, and it can be up to 200' (60 meters) from the pool unit.
Make sure to have minimum walls between the pool unit and the home unit

How far can CORAL see?

How far CORAL can see depends on many factors, including lighting conditions, water clarify, and other obsolesces.
In general, a single CORAL system can see up to about 10 yards.

How can I test how far can CORAL see in my pool?

In general, whatever you can see with goggles under the water from one end of the pool to the other is what CORAL will be able to see.
Once you install your CORAL simply enter the pool from the far end and wait a few seconds. If you get the entry alert - then CORAL can see you. If you do not, then move a couple steps toward the CORAL pool unit and wait again. Once you get the alert, this is roughly how far CORAL can see in your pool.

NOTE: CORAL generates entry alert only after the pool was empty for at least 5 minutes, so if someone was in the pool in the past 5 minutes, you will not receive a new entry alert until the pool is empty again for 5 minutes

How complicated is the installation?

A special emphasis was dedicated to make it very simple.
In general, if you can hang a picture on the wall, you can install CORAL in less than 5 minutes. All it takes is to mount the docking piece with 2 screws to the edge of of the pool.

Please refer to the installation guide here https://coraldrowningdetection.com/wp-content/uploads/2020/06/Coral-Manta-3000-Pool-Unit-Installation.pdf

What if I have an infinity pool or do not want to drill at the pool edge?

If you cannot or do not want to drill at your pool edge, you can simply mount the docking base to a piece of tile, marble, or granite instead. Just make sure it is heavy enough so that it will NOT move due to water motion, nor will it accidentally fall into the pool by a child mistakenly pushing it

My pool is oval. Can CORAL still work in it?

The CORAL system has a 120 degree field of view, therefore it can "see" in most oval or curved pools.
Please refer to the "Is It For Me" page

My pool has an odd shape. Will it work?

In order for CORAL to "see" it needs a direct line of sight from its camera. So as long as your pool shape is not concave, then CORAL will probably be able to see the entire pool (subject to its length and visibility conditions).

If not ,then there might be some "dead spots". Please contact our support for more details

I have a 50' long pool. Will a single system be enough?

As a rule of thumb, we recommend a single CORAL system for up to 30-33'. It is not that CORAL stops seeing after 30-30', but the longer the pool the chances of misses are increasing.
Please contact us for special deals we offer for multiple systems.

How many phones can be paired?

You can connect the CORAL system, via the CORAL App, to as many smartphones you wish

What if my phone has weak or no signal at all?

The CORAL system works locally, in the pool and in the home, totally independently of any cellular or WIFI communication to the phones. So even if you are at a location without any cellular signal, the alarm system will still work in the pool and in the home.
The only difference is that you will not be able to receive the notifications to your phone, and will not be able to silence the alarm remotely

What other notifications CORAL generates?

CORAL notifies you, via the App and the home unit, in any of the following cases:
- Low Battery
- Visibility limitation
- When the water level is not optimal for the system's performance (only to the phone)

Will the alarm go off because of my pool vacuum?

CORAL was trained to detect people and ignore all other objects. CORAL was also trained to specifically detect pool vacuums and ignore them. As a matter of fact, CORAL marks pool vacuums in a special color (purple) to indicate it knows it is a pool vacuum and ignores

Does it generate false alarms?

Each security system may occasionally generate some false alarms. There is simply no way around that. CORAL was developed to minimize false alarms while keeping very high detection rate.
CORAL comes out of the box with a lot of "knowledge" thus you should not expect too many false alarms. However, each pool might have new features that CORAL has not "seen" before, and thus it might alert for them.
See below how to handle false alarms to teach CORAL to ignore them

How do I reduce false alarms?

Whenever CORAL issues an entry or drowning risk alarm, you get notification to your phone, along with the image that triggered the alarm.

In the App, that image will be frozen for 30 seconds to give you enough time to get to your phone and see it.

Please refer to this image to see what buttons to press:

If you are absolutely sure that there is no person or any body part in the image, then press the "Not A Person" button (8), and CORAL will learn that this is not a person, and will not alert for the same looking image in the future.

If there is a person in the image, then press the "Silence" (9) button instead

IMPORTANT: Never press the "Not A Person" button if there is a person in the image as it may teach CORAL to ignore people

Note that pool vacuums or shadows may appear in slightly different shapes and position, thus it might require more than one "dismiss" until CORAL learns all the possible positions to ignore

The sky is very clear and there is a lot of sun. Why do I get "Low Battery" notification?

CORAL uses an internal battery. A fully charged battery can last about 2 days without any charging. When CORAL is exposes to direct sunlight for 7-8 hours per day, it is likely to charge the battery enough so that the battery will not run out.

If CORAL gets less hours of direct sun, then the battery will slowly run out, and you will start getting 'Low Battery" notifications every several days.

1) Occasionally, a tree, a wall, or the house shadow on the system a part of the day, and thus charging only starts later in the morning or ends earlier in the afternoon.
Before contacting our tech support, please make sure that nothing shadows the system the entire day.
2) Even shadow on a part of the panel will impact charging dramatically - so make sure nothing shadows or covers any part of the solar panels

What happens if I do not recharge the battery?

If the battery runs low (below 20%) you will get notification to your phone and in your home unit.
You then can/should connect your CORAL to the charger cable to re-charge it.

If you forget to do that then most likely it will turn off at night. Then, in the morning, once it gets some sunlight, it will turn back on automatically.

NOTE: If you let it die at night and then charge in the morning from sunlight, then most likely your battery will stay most of the time at the 0-40% range, therefore you may receive frequent "low battery" notifications

What can I do if the CORAL does not get enough sun to keep it charged?

If there is not enough sunlight to keep your battery full then you can do one of the following:
- Install it at a different corner of the pool where it gets more sunlight OR where it is facing south (so it gets much more effective sunlight)
- Charge it more frequently
- Leave the charger cable connected all or most of the time
- Order the "Solar Panel Booster Rug" which can triple charging capability (https://coraldrowningdetection.com/shop/solar-panel-booster-rug/)

My CORAL App seems very limited. Is that all it has to offer?

The CORAL App is not a game - it is a VERY simple one with one purpose: to alert you when someone gets into the pool or if someone is at risk of drowning. The alerts are sent along with an image of the event that triggered it.

The App does not have any bells and whistles, and that is on purpose! - The rationale is that when a parents get an alert, they should not start playing with a "cool" App or watch videos of the pool, but rather leave the phone aside, rush to the pool, and stay next to their kids to watch them.

I try to refresh the image, but get "Timeout". What does that mean?

CORAL sends notifications and images to your phone.
If CORAL or your phone are in a location with weak cellular signal, then it might take longer to download the photo to the App, and that is why you receive "Timeout" message.
You can retry to refresh the image or move to a location with better reception to your phone.
Note though that regardless to the "Timeout" message on the App, the detection and alerts on your CORAL system work in the pool and in the home normally.

Why do I get "Power Save Mode" message?

The CORAL MANTA utilizes solar panels to charge its internal battery so it can work also at night or where there is less sunlight.
In order to preserve energy, CORAL switches to "Power Save Mode" at night (typically between 7 PM and 7 AM).
In "Power Save Mode" the detection works normally and in case entry or drowning risk are detected the alerts and alarms will be activated normally, and sent to your paired phone. However, in order to preserve energy, some functions, such as "on demand" refreshed images are limited.

If you keep your system connected to the charger cable at night, the battery will stay full, and CORAL will not switch to "Power Save Mode"

Every once in a while I hear a noise of a buzz. What is that?

There are some times during the year that the pool water emits lots of tiny air bubbles, and they occasionally stick to the dome of the camera.

Using AI the CORAL 'detects' these bubbles and when they become too crowded the system activate an internal vibrating mechanism to get rid of them.
By default it is configured to occur not more than once in an hour. If your pool suffers from lots of bubbles please contact us to change its setting in order to activate it more frequently.

NOTE: This mechanism does NOT work if CORAL senses that the camera is outside the water.

My pool looks clear. Why CORAL tells me its cloudy?

The CORAL camera is more sensitive than what we see from the outside. The reason is that looking from the outside the most we see thru water is 5-6' (from the water level to the bottom of the pool), but CORAL needs to see from one end to the other .... which is more than 30'

What can I do if I get "poor visibility" notifications?

Poor visibility means that the CORAL system cannot see clearly to the far end. Note that when you look at the pool from the outside you may see the bottom of the pool very clearly because it is only 4-6' deep. But CORAL needs to see the far end which is 30-40' away, thus even if the water looks clear to you from the outside it does not mean it is really clear.

For reference, these are some photos showing how clear pools should look like.

If your pool does not look as clear in the App then you may need to talk to your pool maintenance guy to adjust its chemicals

How does it work at night?

CORAL uses camera to detect and track people. When it is dark or when there are poor lighting conditions, CORAL uses its secondary Water Motion sensor.
When it senses water motion that is typical to a person entering the pool (as opposed to waves generated from wind) and it cannot see well, it will turn on its integrated underwater illumination system and try to see. If it sees a person, it will issue an Entry Alert. If not, it will attempt to see a couple more minutes, and if it can still not see, it will generate "Suspicious Water Motion" alert

Does CORAL save images or videos on the cloud?

CORAL saves images and videos locally on your pool system. It does transmit images, via the cloud, to your phone, but it does not store any history on videos or images on the cloud.
For more information please refer to our "Privacy Policy" here: https://coraldrowningdetection.com/privacy-policy/

Are faces recognizable on the cameras?

The images the CORAL system is sending are of low resolution, thus unless someone sticks her/his face in the camera faces and people are not recognizable

How long is the warranty?

The warranty of the system is for one year (for the battery it is 6 months).
Please refer to the warrnty certificate here: https://coraldrowningdetection.com/wp-content/uploads/2019/04/CORAL-MANTA-Warranty-Certificate.jpg

You can extend to another year for.

What maintenance is needed?

In general no maintenance is needed. Just make sure the panels are clean

Can CORAL detect dogs?

The CORAL system was trained to detect people and only people.
However, given that the body structure of a pet has some resemblance to human body (4 limbs etc) the CORAL may detect it.

As a matter of fact, we know of at least one case it saved a dog (see video here: https://coraldrowningdetection.com/coral-manta-3000-saves-a-dog/)

More so, even if CORAL will not "see" the dog, the water motion sensor may still set off the "Suspicious Water Motion" entry alert when the dog falls into the pool (given that he/she is heavy enough)