A water alarm is a device that gives off an audible alarm in case of a water leak. There are many applications of a water alarm; wherever there is a chance of water being leaked, a water alarm can give advance indication of the problem. It can be used in basements and garages and in machines such as washing machines and boilers to indicate that water is leaking. A good water alarm can save several hazards later on. Most houses install and use a water alarm to warn them of such situations. Water alarms have a very important role to play in checking flood damage and warning people that the water level is building up even before it does.
Basically, a water alarm works by using water to make an electric connection. Water, especially tap water, is a conductor of electricity. The alarm is placed in such a way that the connection will be made in case there is a water leak. The water would fill the gap between the two terminals and this can make the connection. When there is a water leak, this is what happens. The water fills in the area between the two terminals and provides the connection due to which the alarm goes off. Water alarms mostly turn the main water line off along with the alarm that they sound. This ensures that there is no further damage.
A common example is the water alarm that is fitted on a sump pump. The sump pump water alarm is prerecorded with a particular water level. The alarm constantly monitors the level of water that the sump pump conducts. When the level is crossed beyond the set value, the alarm goes off.
One of the most important features of the water alarms is the alert that it gives. The alert needs to be audible and needs to have a good volume too, because if the leak is somewhere in the basement, it is necessary that the people in the house must be able to know that the alarm has sounded. Some of these will provide a loud enough volume throughout the house even if they are placed in an enclosed area such as a cabinet. They are also designed to be unaffected by the things that they are kept on, such as carpets or rugs. In most alarms, there are adjustments to increase or decrease the volume. For visually challenged people, there are water alarms that come with a visual alarming system, such as flashing LEDs.
Some more sophisticated versions of water alarms are available today. One of these advanced features can directly call a particular number in case of a water leak. They can be rigged to call the plumbing agency directly. These water alarms are considerably more expensive than the usual ones.
For all that they are, the installation of water alarms is quite simple. These can be installed within ten minutes and do not require any technician to be called. The devices are quite portable too. Hence, if they have been used someplace else before, it does not matter.
Most water alarms work on battery power. This is what adds to their portability. A standard 9 volt battery is what they would usually require. Rechargeable batteries can be used.
Residential water alarms are fitted into appliances that require a constant source of water for their operations such as washing machines, icemakers, water heaters, dishwashers and the like. The alarms constantly monitor the levels of water in these devices and will indicate with an alarm whenever the water level goes up. This prevents a lot of water accidents happening in the house. Water alarms, hitherto considered useless devices, have begun catering to the residential market in a large way. This is in wake of the damages that the various hurricanes and floods have brought up on people.