Colloidal silver can effectively be used for disinfecting water during long-term storage. And there’s another substance you can add, as well, that’s said to boost the disinfectant power of the colloidal silver by up to 1,000 times.

Here’s the details you need to know if you want to keep your water free of microbes during long-term storage…

There are as many opinions on how much colloidal silver to use for keeping water disinfected during long-term storage as there are people using it.

In other words, everyone has a different opinion, and most of them are based on either hearsay or personal experience.

Because water quality differs from town-to-town, region-to-region and state-to-state (and sometimes even from house-to-house), what works best for one person might not work as well for another.


Colloidal silver can effectively be used for disinfecting water during long-term storage- google image 

Nevertheless, the general rule-of-thumb is to use one ounce of 10 ppm colloidal silver per gallon of stored water. But as a “just in case” measure, I personally use two ounces of 10 ppm colloidal silver per each gallon of water being stored, for maximum long-term disinfection.

Using Colloidal Silver and Hydrogen Peroxide

While I’m not a big fan of drinking colloidal silver that’s been treated with hydrogen peroxide (unless it’s been given several days for the hydrogen peroxide to dissipate) I do from time-to-time combine hydrogen peroxide and colloidal silver when I put water away to be stored for the long-term.

Many years ago there was a McGill University study on the use of silver and hydrogen peroxide for the treatment of sewage water. The link I had to that study is now dead. But according to the study, adding hydrogen peroxide to the colloidal silver-treated water increases the decontamination and disinfection of common microbes such as e. Coli by anywhere from 100 to 1,000 times!

Naturally, that might prove to be a valuable consideration in a long-term water storage program. According to the study’s authors, the optimal dose for silver and hydrogen peroxide in drinking water is 30 ppb (parts per billion) silver and 30ppm (parts per million) hydrogen peroxide.

Extrapolated to a five gallon storage container, this would suggest the use of 23 drops of standard 3% household hydrogen peroxide, along with about two ounces of a standard 10 ppm colloidal silver solution.

Before and After


Colloidal Nano Silver 10ppm

My personal opinion is that it’s best to use either of these methods (i.e., colloidal silver alone, or colloidal silver with hydrogen peroxide) both BEFORE placing the water into long-term water storage, and then again AFTERWARDS.

In other words, I’ll add my colloidal silver (or colloidal silver and hydrogen peroxide) before putting the water into storage. And then, when the stored water is needed, I’ll repeat the process before using the water, just in case there was some kind of re-contamination of the water during long-term storage.

  1. Consider Filtration, as Well

Finally, for maximum protection, filtration of the water after long-term storage is very important, in order to get rid of any protozoal cysts such as Giardia that may have been lurking in the stored water from the start.

Many protozoal cysts (of which Giardia is the most common in the U.S.) are not affected at all by the relatively small amounts of colloidal silver, hydrogen peroxide, or even iodine or chlorine bleach frequently used as germicidal and disinfectant agents in water storage.

But because of the relatively large size of these microorganisms (compared to bacteria), filtration through any high-quality gravity fed ceramic filter should do the trick.

In that regard, a company called DoultonUSA has some excellent, gravity fed emergency water filtration units that can filter up to a gallon at a time.

A company called British Berkefeld sells a portable gravity filter, which can hold up to two gallons, and effectively filter up to 10 gallons per day.

What’s particularly neat about the water filters from both of the above companies is that they’re silver-impregnated, so you get additional pathogen germicidal disinfection of the water during the filtration process.

(Kentary does not sell either of those products, and I don’t have any kind of relationship with the companies, though I do own one of each of the above-mentioned gravity fed water filters.)


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