If you don't winterize your sprinkler system, the pipes will freeze and burst.

Yes, you can winterize your own sprinkler system. Most systems have a valve that allows you to turn off the water supply to the sprinklers. This will stop the water from flowing through the pipes and will help to prevent them from freezing. If your system doesn't have a cutoff valve, you can simply turn off the water supply at the meter. If you don't winterize your system, there is a good chance that the pipes will freeze and burst. This could cause extensive damage to your property and could be very costly to repair.