HOW TO to create a low cost rooftop vegetable garden using an old water tank. I managed to get it constructed in about Rs. 8000 and paid the guy about Rs. 2000 for labor to get it working. It was fun growing vegetables on my terrace, but then I decided to join an Eco village called SuryaGram :) suryagram.sulins.org After you watch the video, the rest is quite easy. Just put the seeds in the soil and put water in the pipe twice a month. Also when you put earthworms in the soil they will automatically go inside in about 10 minutes. Just make sure you have enough organic veg waste in the worm bin. That's all there is to it. Also watch another video which shows how to protect it from heavy rainfall. www.youtube.com/watch?v=yaMYnWqBxi0 My blog whoisrishi.com