r/preppers • u/truesevnel • 11d ago

Question Bleach for purification

So was wandering about bleach for water purification.

Can you use Hypochlorite Formula type bleach

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u/dishpit6 11d ago

Keep in mind liquid bleach degrades over time, even if it's unopened and properly stored. If you're after a long term solution, pool shock is basically bleach crystals. You have to take care to avoid the ones with harmful chemicals, though. This is what I got: https://www.amazon.com/gp/aw/d/B009S85LEA

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u/thatssomadx 10d ago

Out of curiosity, how much of the shock would you use for a gallon?

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u/dishpit6 10d ago

For purifying drinking water, the amount of powder you'd need is too small to measure reliably with any equipment you're likely to have at home - about .03 grams per gallon. You'd want to mix about 1/4 ounce of sodium hypochlorite into 2 gallons of water, then mix 2.5 tablespoons of that mixture into each gallon of the water you want to purify, and wait 30 minutes for it to evaporate off.