They offer great usability while being concealed when not in use and are specifically designed as part of a system to offer maximum water efficiency. pop-up sprinkler systems are ideal for many different types of gardens/fields. they can be used to water grass areas to flower beds and borders too. when the system is turned on, the pop-up sprinklers rise from beneath the ground and then retract back down when the system is turned off usually by an automatic irrigation timer.