This Is A Great System For Your Balcony, Garden, Or For The Children To Learn About Growing Their Own Vegetables. Autopots Are A Very Easy To Use Grow Kit, No Need For Pumps Timers Ect, Everything Is Gravity Fed, A Very Popular Range, Just Add The Extension Kit To Add More Pots Feeding Of The Same 47 Litre Tank, Works Great With Either Soil Or Coco Growing Mediums.