Build a simple filter at home. Get a bucket. Layer in clean sand, then activated charcoal (crushed charcoal from a fire works). Pour dirty water through. The sand catches big stuff, and charcoal traps E. coli like a sponge.
Pro tip: Use fine sand, not the chunky beach kind. E. coli is small. It can slip through gaps like a slippery fish. You want a tight weave. Bonus: Charcoal also removes bad smells. Your water won’t taste like swamp.
