A little water sovereignty
Thought I would write a quick note to describe our drinking water setup here. We have a rain barrel (200 litres) attached to the downspout of the rain gutter front and back. From there I bring water into the house in a watering can and put through a counter-top gravity-fed safari filter. We have the British Berkefeld filter housing and it fits four Doulton ceramic and charcoal filter candles. These candle units filter bacteria, protzoans etc and some of the chemical hazards -- until recently our next door neighbours relied on a coal stove so I got the chemical filtering type candles to cut down some of the coal soot elements. Then I put the filtered water into the kettle and boil, and when it's cool into a glass demijohn jar for drinking cold. This last step is to make sure we are avoiding any avian-borne viruses as those ought to be broken up by boiling, before I started doing that we used to get more colds.
Even in the hottest of the recent years in the UK, when we've had several weeks without rain, I have not got to the bottom of both rain barrels. We would run out of both if there was a really prolonged dry spell. But this simple setup is what we use all the time, partly because the children seem to be sensitive to when the tap water tastes bad. Sometimes it just tastes really salty or soapy. We have private water companies in the UK so no way to rely on getting really high quality tap water although officially nothing is wrong. We use the tap water for washing etc. But I can manage the work with this system to make our drinking water, with the ongoing cost being replacing the filter candles every six months, and I usually make sure I have a spare set of filter candles in the house in case I decide they need changing ahead of schedule.
Obviously this kind of system won't work where you get much less rain than we do. I've been thinking about how people get their drinking water since seeing the pictures of the USA from space -- I think if there's not enough water to make the land green there's not likely to be enough rain to supply drinking water? If I remember right our average here is about 24 inches / 600 mm of rain a year.