By now, it’s fairly common knowledge around here among Survival Moms that bleach has a limited shelf life. If you’ve been storing bleach long-term for water purification purposes,there’s a very good chance that it has lost most of its effectiveness.
Here’s a tip to get the most out of your stored bleach.
First, write the purchase date on the bleach bottle, using a black Sharpie. This will be a reminder each time you see that bottle that you need to start using it, and replacing it with a new bottle, about 6 or 7 months following the purchase date.
Next, with that same Sharpie, write, “8 drops per gallon water, 16 drops cloudy water,” on the bottle. With this information right in front of you, you won’t be rummaging around looking for these amounts in an emergency.
Finally, duct tape an eye dropper to the side of the bleach bottle. These are very inexpensive online and are found in drug stores and usually in the over-the-counter medicine aisle in the grocery store.
A handy eye dropper will make sure that you’re using the correct amount of bleach and you won’t have to resort to using an eye dropper from another medication.