The Autopot AQUAvalve is supplied with all AutoPot Watering Systems. Once connected to the water supply the AQUAvalve will control the flow of water to the plants, by simple gravity pressure from a tank or water butt, no pumps, mains water pressure, electricity or timers are required. Once connected to a tank the AQUAvalve will open and allow water to fill the tray to a max level of 20mm. The AQUAvalve will not refill the tray until all the water has been used allowing the plant to go through a wet and dry cycle. The AQUAvalve is at the heart of all AutoPot watering systems and ensures the systems offer low maintenance, are easily extendable, there is no more hand watering and can water and feed crops whether ornamental or edible all year round. Due to the capacity of the AQUAvalve, AutoPot are now market leaders in irrigation whether for domestic gardening, commercial horticulture or hydroponics. The AQUAvalve is a simple but very effective watering device promoting phenomenal growth and maximum yields.