I am at home this morning looking after the kids, (wife has an appointment) staring out of the window, when Metrorod roll up and attach a standpipe to the FH outside my house. I went out to my van to turn off my water as I was filling my tank, and started chatting to the guy who was filing a 650ltr tank (just like ours) It took just 5 mins and the tank was full. (my tank takes over half an hour to fill) He said that there is a meter fitted to the standpipe and they have to tell the water company the readings monthly for billing. I wonder if we could do this? Water on tap everywhere we go. May look into this.