A while back I was checking out citrus trees at RCW nursery, and noticed that they were using these funny little stakes to irrigate all the containers. Their design is simple and brilliant - a simple plastic stake that connects to small diameter line, and uses the geometry of the connection to dispense water in a 160-degree pattern. The tip is even the same shape as the connection, so that you can simply turn the stake around and re-inert it into the tubing to ‘shut it off’. These clever little devices are called ‘Spot Spitters, and are manufactured by a company called Primerus. They come in a wide array of sizes and flow rates, and most importantly they are compatible with the plastic irrigation tubing I’m already using all over the yard.
I’ve just started using these, and other issues may pop up as time goes on, but for now I’m sold! Using these on a timer sure beats dragging hoses all over the yard.