VIDEOClick to see full answer. Moreover, can you have a sprinkler system on a well?Calculating the flow rate provided by a well is tricky since most wells feature a tank from which your home draws its water. As sprinkler systems use a lot of water, your sprinklers can use all of the water in your well tank if they pull more water than your primary well pump provides.Subsequently, question is, can I turn on my sprinkler system myself? Slowly open the main shutoff valve to let water into the sprinkler system. For an in-ground shutoff valve, use a sprinkler valve key to turn the valve counterclockwise until it stops. Run a Manual Test. Set the system timer to run a manual test of all of the sprinkler zones, running each zone for about 3 to 5 minutes. Then, how does a well irrigation system work? Wells operates differently than a municipal water system, pulling water from the ground and then pumping it into your home. If you’re on a city water system, you likely get constant water pressure. Your well uses its own irrigation well pumps to provide pressure.When should I turn on my sprinkler system?Opening your sprinkler system for the season will depend on the weather conditions and your individual watering needs. As a general rule, the system should not be opened until the threat of frost is passed. If you are an early planter, we recommend waiting to open your system until after April 15.