A low-pressure drip water system attached to the wheelie bin gives a passive watering system. I am really pleased this irrigation product (low pressure drip hose) is available. I also avoided buying the wrong type of piping: I went into the store intending to buy the brown version.

The helpful woman at Croydon Bunnings suggested I need a T-joint where the drip pip joins the pipe from the wheeliebin. I followed this advice and my guess is that it equalises the pressure of the flow in the pipes. (The green pipe in the photo starts at the T-joint on the right side)

By using some basic hose fittings, including a small valve and some low pressure drip feed hose bought at Bunnings (AUS $55 ), I was able to create a watering system that really works: every dripper was dripping, and you can turn it on or off easily. The wheeliebin was nearly empty after several hours. If you take a close look you can see a drip coming out of the pipe. 
Finally I have figured out the best way to set this system up!
Drippers are inside the pipe every 30 cm (12″)

And the photo at the bottom is the area I am trying to keep alive during this drought, a drought that seems to have no end and seems to be signalling this is the climate of the future. 
Photos taken with a Pentax K-m: an excellent intro level DSLR.
Posted by Stefan Carey
The next major task is to fit the downpipe diverter to the dowpipe. I used a simple hacksaw to cut a section from the downpipe. Make sure you do not cut too much off! It’s easy to do! Remember that some of the downpipe has to sit inside of the diverter, which means that what you cut has to be less than the length of the diverter. (In the photo here you can see the end of the diverter: actually its the pice of downpipe I added to the end of the diverter to give the setup extra reach.)
So the water runs in and keep the debris out, cut a hole in the top, and fit the flywire. A jigsaw is a fast way to cut the hole (photo). Then drill holes for the rivets and rivet the mesh on. The mesh also keeps out the mosquitoes.
Step 1: Remove what you want with a hacksaw. If your wheeliebin will be in that narrow space between the fence and the house, cutting excess will reduce the trippping hazard, especially if you have to squeeze your way past the bin is on the way to the gas hot water service in the dark to relight the pilot light.

