Hi guys, it's nice to find your community here (even if i'm from half the way around the world). While at a friend's house i saw he had a "Homemade" sprayer. It consisted of a container (it must have been 60-80 ltrs) an electric pump and really long hose with a spray gun at the end. The Hose must have been 25-30m long. The whole installation was immobile under a shed in the garden. I like the idea! For my garden i need approx 320 liters to cover the premises. I have a 20 liters backpack sprayer, but as you can calculate that means more than 16 refills and my back hurts in the end. My friend says he inherited the sprayer from the previous owner, so he cannot help me. What i want is some guidelines to the sizing of the whole thing. How big the container? What kind of a pump? The diameter of the hose? what kind of spray gun? What should i look for? (pressure, length of the hose-longer=better) I am a licensed electrical engineer (so the pump and the electrical installation won't be a problem) and i have no problem "making things". I'm willing to take pictures if this project takes of and post them back here at the end. Thanks!