Yes, it is a good idea to winterize your sprinkler system. One of the main reasons to do this is to prevent the pipes from freezing and bursting. Another reason is that, if water does remain in the pipes and sprinkler heads, it can freeze and cause damage. To winterize your sprinkler system, you will need to turn off the water supply and drain the pipes. You can then either blow out the lines with compressed air or fill them with antifreeze. Be sure to follow the manufacturer's instructions for winterizing your specific sprinkler system.

It depends on your location. Generally, if you are in an area where the temperature drops below freezing, you will need to winterize your sprinkler system. This means shutting off the water supply to the system and draining all of the water from the pipes. You can then disconnect the hoses and store them in a warm place until spring.