There are people who collect and deliver 1000 liters at a time. I have no space for an IBEC nor the capacity to collect myself as the best water is off shore.If I lived in Oz, I probably wouldn’t feel the need to surround myself with these things. They’d already be around me.
I knew of a guy who lived on a beach years ago who plumbed his collection straight form the beach he lived at. Basically GBR water WC every day.