Step 6: Watering System
For now, I salvaged a piece of drip line for the ground. The black pipe drip line has drip ports every foot and a half. For watering the shelf layer, I added a pipe 'T' between the garden hose and the drip line. The pipe 'T' is connected to a valve and a length of salvaged washing machine hose. The washing machine hose is connected to an adjustable sprayer which is shown removably wedged between the two gutters. Since the sprayer is adjustable, I didn't really need the valve. The washing machine hose has two female ends so I needed a 3/4" male-male pipe connection. At the spigot, I added a timer but this timer requires daily setting and is more for preventing forgetting to shut the water off.
As you'll notice there is standing water in the gutter, this is from a failed attempt to suspend an old shower head from the top bar. The flow was not quite right for the application and the hose connections were a bit of a pain, but old shower heads may have a purpose in gardening.