(14 June 2018, 19:30)LAC Wrote: Pete, do you use the bleach just for cleaning/steralising the jerry cans or do you add it to the water as a means of steralising the water itself? If so, in what quantity/ratio?
https://www.clorox.com/how-to/disinfecti...ing-water/
The treatments described below work only to remove bacteria or viruses from water. If you suspect the water is unsafe because of chemicals, oils, poisonous substances, sewage or other contaminants, do not drink the water. Don't drink water that is dark colored, has an odor or contains solid materials. The best source of drinking water during an emergency is water you have stored with your emergency supplies.
Store one gallon of water per person per day--enough for at least three days.
Store-bought, factory-sealed bottled water is best. Check for an expiration date and replace as needed.
If you choose to fill your own water containers:
Collect the water from a safe supply.
Store water in thoroughly washed plastic containers such as soft drink bottles. You can also purchase food-grade plastic buckets or drums.
Seal water containers tightly, label with date, and store in a cool, dark place.
Replace water every six months. Never reuse a container that held toxic substances such as pesticides, chemicals or oil.
Purifying by boiling - If your tap water is unsafe, boiling is the best method to kill disease-causing organisms.
If tap water is unavailable, the following may be considered as potential water sources. Water taken from these sources should always be boiled or chemically treated before drinking.
Rainwater
Lakes
Rivers and streams
Natural springs
Ponds
Caution: Most chemical pollutants will not be removed by boiling.
Cloudy water should be filtered before boiling. Filter cloudy water using coffee filters, paper towels, cheesecloth or a cotton plug in a funnel.
Bring the water to a rolling boil for at least one full minute. Let the water cool before drinking.
Add two drops of household bleach per gallon to maintain water quality while in storage. Purifying by adding liquid chlorine bleach such as Clorox or Purex containing berteen 5.25 percent and 8.25 percent sodium hypochlorite. Avoid using bleaches that contain perfumes, dyes and other additives. Be sure to read the label.
Cloudy water should be filtered before adding bleach.
Place the water in a clean container. Add the amount of bleach according to the table below. Mix thoroughly and let stand for at least 60 minutes before drinking.
Treating water with household bleach containing 5.25-8.25 percent chlorine
Volume of Water to be Treated_Bleach Solution to Add
1 quart/1 liter_______________5 drops
1/2 gallon/2 quarts/2 liters_____10 drops
1 gallon____________________1/4 teaspoon
5 gallons___________________1 teaspoon
10 gallons__________________2 teaspoons
Caution: Bleach will not kill some disease-causing organisms commonly found in surface water. Bleach will not remove chemical pollutants.
Prior to addition of the bleach, it’s important to remove all suspended material from collected water by letting it settle to the bottom or by filtration. This means that after you collect some water that hasn’t been treated, you need to let it sit long enough to let any debris settle to the bottom of the container.
Next, decant the clarified contaminated water into a clean container, then add the bleach. Use the table below to determine how much bleach to add—it depends on how much water you are treating. Allow the treated water to stand for 30 minutes. Properly treated water should have a slight chlorine odor.
If there’s no chlorine odor, then you need to repeat the treatment. Just add the same amount of bleach, and wait for another 15 minutes. Check again for the chlorine odor before drinking the water.
Here are some other important things to remember.
DO NOT use the Scented bleaches, High Efficiency bleach, Splash-Less bleach, etc. l.
Use bleach that was purchased in the last 4 months.
If the water you want to treat is cloudy and you can’t decant or filter it, add twice the amount of bleach recommended above.
Check with your water service provider to confirm that your tap water is safe to drink.
If you stocked up on bottled water, save the empty bottles!! You can use some of them to collect untreated water, and others to store the water you treat.
Read more at
https://www.clorox.com/how-to/disinfecti...ing-water/
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