- two wheelie bins. I bought these online from Wheelie Bin Sales for about $80 each and about $15 delivery (figure accurate as of today) . Very reasonable, (note: the small asterisk next to their prices means ex-GST, that is, GST is not included)
- the plastic hose connections that fit in the bottom: not sure but these were less than $10 a set
- about 600 mm X 1 metre wide quality fly-wire (that is, thick, metal and durable) about $10 or less (I used this to filter out debris as the water enters the wheeliebin
- submersible pump (I can recommend the Creative Pump people in SA and their easy to use website with excellent comparison charts for pump features. Good follow-up service too.) This small pond pump (I now realise is underpowered for the slope it has to pump up) was about $50 with $9 delivery to Melbourne
- a downpipe diverter to direct the water into the top of the wheelie bin, $30.
Tips: Before you buy, try to visualise and draw what you need. You might be able to save yourself a drive to the hardware. Like light globes, I find hose fittings confusing to buy and have returned home with the wrong ones more than once. The stores often keep the plumbing and garden fittings in separate areas. You may need to look in both.