there is no going rate mate. at the end of the day, we can turn over £700 with a 1000L of water so asking £60 for that doesnt seem to bad, we sell it mostly to people that have forgotten to switch on their RO the night before, so you can buy my water or not work, simple. also some people buy water on a sat morning, so it needs to be worth my while to go to the unit on my day off and sell them water.