Backflow devices are designed to protect the potable water supply from contaminants returning up the water lines from back-siphoning or back-pressure. They are very important for protecting the public water supply from potential health hazards. There are several different types of backflow installation devices to choose from when designing your new system. All of these systems must be inspected every year to assure that they are working properly.
Backflow is a problem because anything in the pipes you are using can be sucked back into the neighborhood water supply. The water is moved by back-pressure and is a fairly common occurrence. Most businesses are required by law to install the devices to protect the water supply.
The problem of back-pressure is especially dangerous if you are adding chemicals to the water you use. Fertilizers, pesticides and animal feces can be easily introduced to water sources by back-pressure if there is not a device installed to prevent it. Shut off valves are notorious for leaking or failing and offer little protection from these problems.
A double check valve assembly is not approved for systems that plan to inject chemicals into the system. They are the most common of all inline underground systems. They are less apt to freeze in harsh weather because they are under the soil or in basements or out buildings.
The most common and least expensive type of whole-system preventive devices is the pressure vacuum breaker assembly. This system is the easiest to install of all whole system devices. Many of these have a freeze protection valve installed in them. Unfortunately it only covers the device not the pipes. Another drawback to this type of assembly is that it occasionally ejects water so installation inside a building needs to have proper drainage.
The reduced pressure zone assembly is the industrial standard for commercial properties. Apartment houses and condominiums will have this type of assembly. These assemblies are the most difficult to install and have the most complex systems to operate. They are also the most efficient means of protection from contamination.
For sheer simplicity the atmospheric vacuum breakers are the answer. They handle single lines of irrigation systems and you can use up to six of them on your property. These are also the least expensive of all of the assembly packages and can be easily installed as well. This package cannot be used for whole system operations.
There will be many decisions for you to make when selecting which irrigation backflow installation you want. You must determine whether or not you plan to use additives in the water you use. You must also consider size of project and the use of the project you are considering. The main objective needs to be the safety of everyone's water supply in the area and how to make certain that you do not contribute any contaminants to the area.
Backflow is a problem because anything in the pipes you are using can be sucked back into the neighborhood water supply. The water is moved by back-pressure and is a fairly common occurrence. Most businesses are required by law to install the devices to protect the water supply.
The problem of back-pressure is especially dangerous if you are adding chemicals to the water you use. Fertilizers, pesticides and animal feces can be easily introduced to water sources by back-pressure if there is not a device installed to prevent it. Shut off valves are notorious for leaking or failing and offer little protection from these problems.
A double check valve assembly is not approved for systems that plan to inject chemicals into the system. They are the most common of all inline underground systems. They are less apt to freeze in harsh weather because they are under the soil or in basements or out buildings.
The most common and least expensive type of whole-system preventive devices is the pressure vacuum breaker assembly. This system is the easiest to install of all whole system devices. Many of these have a freeze protection valve installed in them. Unfortunately it only covers the device not the pipes. Another drawback to this type of assembly is that it occasionally ejects water so installation inside a building needs to have proper drainage.
The reduced pressure zone assembly is the industrial standard for commercial properties. Apartment houses and condominiums will have this type of assembly. These assemblies are the most difficult to install and have the most complex systems to operate. They are also the most efficient means of protection from contamination.
For sheer simplicity the atmospheric vacuum breakers are the answer. They handle single lines of irrigation systems and you can use up to six of them on your property. These are also the least expensive of all of the assembly packages and can be easily installed as well. This package cannot be used for whole system operations.
There will be many decisions for you to make when selecting which irrigation backflow installation you want. You must determine whether or not you plan to use additives in the water you use. You must also consider size of project and the use of the project you are considering. The main objective needs to be the safety of everyone's water supply in the area and how to make certain that you do not contribute any contaminants to the area.
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