http://youtu.be/R84Y4Ix2afQ
The AQUAVALVE is an accessory for AUTOPOT systems but can also be used for the self-construction of self-irrigating systems; is the "heart" of the system and allows you to irrigate a tray by going through a wet / dry cycle, allowing for air to circulate around the root system of the plants present in the system. The AQUAVALVE only dispenses a thin layer of water on the draining bottom of your pots and tows itself until it has dried completely. At this point AQUAVALVE makes the solution flow again at the base of the vessel, continuing this cycle indefinit