The AutoPot XL System is a gravity powered, automated watering system that requires no pumps, timers or electricity to operate. Fill your reservoir once a week and let the AutoPot system do the rest! The XL uses large 6.6 gallon pots and is perfect for larger plants or living soil grows. It is a modular system that is easily extended so many pots can be linked to a single reservoir. Once set up and a reservoir is filled with water & mineral liquid feed, this extremely versatile system will completely take care of all your plant's needs while you save time and energy from no longer hand watering your plants!