How do you replace the backflow valve on a sprinkler system?

Answer by  worker3873 (146)

Turn off your master valve to shut down the water supply during work. Locate or escavate the backflow valve and saw the pipes to remove the old valve. Place your new backflow valve and attach new, fitting irrigation pipes with irrigation pipe glue to seal all leaks. Finish by checking the work to leak free.

Answer by  worker6730 (22)

first once check the leakage condition if any, remove all parts except the parts plumped into the main connection, and thoroughly clean all the removed parts once again and replace it all and tighten then ignite the system, if works correct then the waste of money may be avoided.