Hello everyone. Im a "bug in" kinda guy. My local area lends itself well to it. There are plentiful water sources nearby (within 100 yards), so im only storing about 30 gals of fresh water at the house. I want to develop a plan for collecting the nearby water and bringing it home in SHTF situations. Can anyone recommend a purification technique or equipment for purifying large quantities of water? Something thats sustainable and not too expensive?