SORAS - a simple arsenic removal process
wilsonweb.physics.harvard.edu/arsenic/remediation/sodis/SORAS_Paper.html
In summary, the application procedure developed by SORAS field tests comprises the following steps:
fill 4/5 of the plastic bottle with pumped groundwater
add approx. 6 drops of fresh lemon juice per litre of water
shake the bottle vigorously for approx. 30 seconds
expose the plastic bottle in horizontal position to sunlight for a full day
turn the bottle in vertical position and leave the solids settle over night
decant the supernatant water carefully the next day or filter it trough a close
I’ve read of a couple that had capsized their watercraft in the Colorado and lost every thing.
Plenty of water to drink but the male would not drink any due to fear of https://www.cdc.gov/parasites/giardia/index.html
So he didn’t. died of thirst before being picked up by other boaters.
Moral: better to get the sh!+$ that make you THINK you’re gonna die than to actually die.