Safety Benefits of Backflow Prevention.

Backflow is reversal of water that can mix clean water with unwanted substances such as dirty or industrial water. Conditions such as the decrease in public water systems may cause a back flow of water from private property such as swimming pools and irrigation schemes. The decrease in pressure could be because of a leak in in the system. Back flow prevention devices are used to prevent the contaminated water from getting back into public water supply pipes.  https://en.wikipedia.org/wiki/Backflow_prevention_device

The cause of back flow can be back pressure or back siphonage. Pressure lower than that of private systems in supply pipes causes back siphonage. Back siphonage can happen when the main water supply is interrupted by breaks, repairs or firefighting activities. Back pressure occurs when there is an increase in private systems water pressure. water borne diseases can affect children, elderly people and people with low immunity if they drink water that is contaminated by impurities from back flow. The best way to deal with backflow is by is by prevention by the use of backflow prevention devices because most of its causes is beyond our control. see 
back flow testing Santa Fe
 

The back flow devices are a mandatory plumbing requirement in most areas and are supposed to be tested on annual basis. It is important to occasionally test backflow prevention devices because they have no protection benefits if they are not installed well or are faulty. you can get fined for not installing back flow prevention devices in some counties. Santa Fe back flow testing and Alberqueque flow testing companies are some of the companies that can provide backflow prevention devices testing and repair in Santa Fe area of new Mexical,USA.

It is the function of the backflow preventer to make sure that water flows in one direction. The devices can come in different designs and sizes such as the double-check valve backflow preventer and a reduced pressure zone backflow preventer. The air vets, water release valves and check valves make it easier for technicians and owners to check the function ability of the double check valve backflow preventer. Some backflow prevention devices can be easy to install but it is better to have the installation done by a licensed plumber.

Irrigation businesses and landscapers gardens that have a connection with the public water supply system are more emphasized to have backflow prevention devices . Fatal results can be experienced if pesticides from irrigation businesses flow back into your household water supply contaminating the water that you use for household activities such as cooking and drinking. It is the responsibility of water supplying authorities and the local governments to protect drinking water by inspecting the bachflowprevention devices. see more  http://accreditedbackflowspecialists.com/backflow-repair-and-testing/