There are several things to consider when choosing the right robot for your pool: Pool Length: Pool length is the #1 thing you should consider when choosing a Dolphin. Measure the longest length of your pool and make sure the robot you choose has appropriate cable length to cover your entire pool. Feature Set: Weekly Timer: This allows you to set your robot to work on preferred days at a specific time. Cycle Selector: This allows you to select a certain cleaning style; such a