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You must have a backflow preventer on your irrigation system. In most places this is the law, everywhere else its just the smart thing to do. Almost everywhere the local authorities will dictate that certain types of backflow preventers may not be used with irrigation systems because they do not provide adequate protection. In some cases, the authorities will dictate the exact type of backflow preventer you MUST use. You may hear or see the term Cross-Connection Control used, this essentially is referring to backflow prevention.
National Lawn Sprinklers uses state of the art equipment to install your irrigation system with minimal disruption to your existing lawn. The pipe is pulled beneath the surface without trenching.
A homeowner should call us sometime around March 1st, depending on the weather, and have us come out to get your system up and ready for the summer. At a spring Turn-On a technician will come to your home, turn your water on, program your controller and run and adjust all heads. At that time they will do any repairs on the system.
A rain sensor is a device that hangs from the outside of your home to measure the amount of rainfall we have had. If the rainfall exceeds a certain amount it then sends a signal to your controller to stop watering until the rain sensor dries out. These devices come in either wired or wireless for easy installation in any application.
The length of any installation varies from job to job but a normal residential yard takes one to two days to complete.
One should first start by constructing a landscape design or plan that show exactly what needs to be done. All finish grade should be done then we can come in and install the irrigation. After that all plants, sod, and bed material can be brought in and installed.
One can usually always add onto a system after it is installed. It is a great idea to know where other irrigation was run before adding on. It is helpful to have enough extra wire and space in the controller for additional zones.

If there you have any unanswered questions please contact us and we will be happy to assist you with any questions you may have.