[Gordon Watson]

Thanks for all your help and comments. I am going to install 2 x 500L BNC tanks, with some insulation in the pipes.

Gordon

[Jeff Brimble]

Remember that the colder the water the quicker it will freeze when you send it up the pole paticulary thro the brush head "jets" when its zero degrees. When in a container its the top 2" that will freeze, you may need to break the surface to get it to come out of a tap.
I always keep 25- 50 litres indoors to start the day when its that cold.

[Gordon Watson]

Graham,

We are a two man outfit with a (soon-to-be-fitted) 800L van tank. I figure that 400L per person should last a long-enough day doing our many-houses-in-one-street domestic round.

Gordon