My pipes were frozen and, like a dork, i'd forgotten to fill up last night, so I had to mess around for hours unfreezing everything. I got out at 1pm and cleaned till 4 - just 4 large houses. It was mighty cold and the water was freezing on the glass at one place. I had 4 more to do today, so that's down for tomorrow now.
I've got the eleccy greenhouse heater in the van, 500l of pure water and have brought my poles and hoses inside. I've already wrapped all the pipes, filers and RO in foil covered bubble wrap (it was only the connectors and pipes outside that froze solid last night), so i'm hoping I can make a leisurely 10am start and be home by midday-ish. Just hope it's not too cold to clean - washing windows with slush doesn't inspire confidence in the custy!