Its a good way of recycling unwanted dustbins, or making cheap water butts from scrap. At the old plademI had a broken wheely bin thatnthe carncil persistently failed to collect so I converted that into a water butt. £3 for the tap was a lot less than the cost of a ready made water butt, and it saved it from going to landfill. Recycling is good, as is saving water!