The method you have described is basically a UV-C method where the ultraviolet part of the light kills bacteria. It's not a complete method and tt won't work here in Scotland
On a serious note. Just think about what kind of emergency are you preping for and what kind of filter will suit it the best. In my opinion a gravity filter (like the berkey/berkefield for example but there are others) will fit all emergency situations.
Technik, how do you plan on keeping track of how much water is passing through your filters so that you know when they are end of life and need replacing?
Thanks for that T. I am looking for the same things, simplicity, low maintenance and no reliance on other power sources etc.
What I am looking at doing is running a pipe into the house with a small hand pump which flows in at the top and filters into a holding vessel. If I have power I can add a small drill powered pump and have the hand pump for no power situations.
In terms of measuring litres filtered, just add a standard water meter in a pipe from the filter to the holding vessel and voila
Good idea KalPrep and remember to kep spare parts for the pump and some washers just in case. Anything I buy these days comes with at least one spare set of parts.
Juvecu - how do I plan to keep a track of water usage? First of all I will put a sticker at the bottom of the lower container (on the outside of course) which will have a start date. I will calculate roughly how much water do I filter through per week and as soon as I have that I will know the rough date of the end of my filters. The filters also slow down after a while which you have to take out then and scrub a little bit and then again after a while, and so on until they completely stop filtering. I will also once a year do the food coloring test to be sure that they work (would do it more often if the water source is realy bad).
