Survival Basics: Water and Water Storage

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During a recent book giveaway, the question asked was “What piece of prepping gear is at the top of your bucket list?”  Needless to say, I was more than a little bit surprised to find that the top response was water storage, water filters, and water purification equipment.

While having the gear is nice, anyone interested in preparedness also needs to have a basic understanding of the concepts behind water and water storage.  Where to find, store, purify, and filter water are all questions that need to be asked, answered, and periodically reviewed.

Backdoor Survival: What You Need to Know About Water

And why do I know that?  A couple of months ago I was personally without running water for 12 days.  Being up to speed on the do’s and don’t of water were key to my getting by just fine during this period.

With that in mind, today I share an article on water as a survival basic.

Back to the Basics: Water for Survival

When I first started Backdoor Survival, my focus was on gathering the basics: food, water, shelter and fire. Of course, along the way I have learned that there is so much more that is essential to long term survival. Things that come to mind are clean air, clothing, first aid, self-defense, signaling and a community with others.

But today I want to keep things simple and, for the benefit of my newer readers, go back the basics and review the essentials of water for survival.

Water is the Most Important Survival Basic

Clean water is something that we all take for granted. We turn on the faucet and there it is. It is plentiful, it is clean and it is drinkable. Yes, it may have some undesirable chemical additions such a fluorides, but for the most part, having clean, drinkable water is something we have come to rely upon.

The bottom line is that if a disaster occurred and the supply lines to fresh water were comprised, we would be in a pickle. There is a possibility that safe water would not be available for days and possibly not for weeks.

The rule of thumb propagated by FEMA and just about every other authority out there is that you store at least one gallon of water per person and pet, per day, for a minimum of three days. But if you think that a three day water supply is adequate, think again.

A more reasonable recommendation is that you up the recommended amount of stored water to a two week supply. So for two people that would be 2 people x 1 gallon x 14 days = 28 gallons. This amount should cover your minimal needs for drinking, food preparation and nominal, and I mean nominal, hygiene.

DIY Water Storage

Storing water for an emergency can be as simple as filling thoroughly washed plastic or glass containers with tap water and sealing them tightly. This is something that anyone can do without incurring a cost so long as few simple rules are followed.

Here are the steps to can take to store water for emergency use:

1. Thoroughly clean your plastic bottle and jugs with dishwashing soap and water then rinse completely so there is no residual soap.

2. Sanitize your bottles by adding a solution of 1 teaspoon of un-scented liquid household chlorine bleach to a quart of water. Swish the sanitizing solution in the containers so that it touches all interior surfaces. Don’t forget to sanitize the lids and caps as well. After sanitizing the containers and caps, thoroughly rinse out the bleach solution with clean water.

Note:  Bleach has an effective shelf-life of one year.  Make sure that the bleach you are using is fresh.

3. Fill the sanitized containers to the top with regular tap water. Add two drops of non-scented liquid household chlorine bleach to the water, then tightly close the containers using the original caps. It is probably a good idea to use some latex or nitrile gloves A water freak: How to store water for emergency short term use at this point so that you maintain the sanitation and do not contaminate the caps by touching the inside of them with your fingers.

4. Date the outside with a permanent marker such as a Sharpie.

5. Store in a cool, dark place.

6. As a precaution, rotate in six months to a year. Dump the water, re-sanitize the jugs, and start all over. Or, if you have the space, mark the jugs as “non-potable” and save the water for non-drinking emergency purposes.

Personally, I think it would be a good idea to put up a few jugs at the first of each month. Do this for six months and you will build up a nice, rotating stock.

Plastic soda bottles or juice jugs work well for DIY water storage.  On the other hand, milk jugs should not be used for water storage.  Milk and protein sugars are difficult to remove and will compromise the stored water because they create an environment for bacteria growth.  In addition, milk jugs are flimsy and will not hold up, even for a short period of time. Ditto cardboard. The cardboard will eventually leak and make a big mess. Glass is okay but be aware that glass is heavy and subject to breakage.

Water stored as described above will be good for at least six months to a year and possibly longer.  Let me be clear: you rotate water not because it has an “expiration date” but that it may become chemically or biologically contaminated and foul.  Why take a chance?

Technically, if water is stored in a cool, dark area and away from chemical and toxic fumes, it should last forever.

If the cleanliness of the the water is in question, it can be purified with purification tablets, fresh bleach, or a filtering system such as the Berkey or LifeStraw, among others.

Gaye and her water barrel

If you have the space and the budget, you can also purchase food-grade plastic containers and drums designed for water storage. These containers typically hold up to 55 gallons of water and with the addition of proper purification chemicals, will keep the water safe for up to five years.

I personally have a 55 gallon water storage system. It was easy to set up and it came outfitted as a complete kit with all of the various tools and siphons I will need if/when that emergency situation occurs.

Another alternative, of course, is bottled water. The same rule applies: store in a cool, dark area and periodically rotate just to be on the safe side.

Hidden Sources of Water

In addition to tap water, there are other hidden sources of water that you can use when a disaster occurs. These sources include the water in your hot water heater, pipes, and even the ice cubes from the icemaker in your refrigerator or freezer. Before tapping in to these sources, however, you will first need to shut off the main valve coming in to your home so that you do not contaminate the ”good” water with the “bad”.

Here are some specific instructions for using the water in your hot water tank:

  • Turn off the electricity or gas.
  • Open the drain at the bottom of the tank.
  • Start the water flowing by turning off the water intake valve at the tank and turning on a hot-water faucet.
  • And don’t forget: be sure to refill the tank before turning the gas or electricity back on.

Outdoor Sources of Water

Barring the use of stored water or the hidden water sources in your home, there is always the outdoors. Water may be available from rainwater, streams, ponds, lakes and natural streams. Absolutely stay away from flood water since it is likely to contain sewage and other nasties that you do not even want to think about.

When using outdoor sources of water, you are going to have to undertake purification measures to make it safe. There are many ways to purify water, some better than others and some easier than others.

Water Purification

For ad hoc water purification, nothing beats plain old bleach as long as it is fresh (no more than a year old) and unscented.

According to the Clorox website: When boiling off water for 1 minute is not possible in an emergency situation, you can disinfect your drinking water with Clorox® Regular-Bleach as follows:

1. Remove suspended particles by filtering or letting particles settle to the bottom.

2. Pour off clear water into a clean container.

3. Add 8 drops of Clorox® Regular-Bleach (not scented or Clorox® Plus® bleaches) to one gallon of water (2 drops to 1 quart). For cloudy water, use 16 drops per gallon of water (4 drops to 1 quart).

Boiling water is considered the safest method of purifying water. What you do is bring water to a rolling boil for three to five minutes. The water may not taste that great but it will be safe to drink.

Factoid: To improve the taste of boiled or stored water, you can put some oxygen back in to the water by pouring it back and forth between two containers.

As an alternative to bleach or boiling water, the EPA has guidelines for using calcium hypochlorite, commonly sold as “pool shock” to disinfect water:

Add and dissolve one heaping teaspoon of high-test granular calcium hypochlorite (approximately ¼ ounce) for each two gallons of water, or 5 milliliters (approximately 7 grams) per 7.5 liters of water.

The mixture will produce a stock chlorine solution of approximately 500 milligrams per liter, since the calcium hypochlorite has available chlorine equal to 70 percent of its weight. To disinfect water, add the chlorine solution in the ratio of one part of chlorine solution to each 100 parts of water to be treated.

This is roughly equal to adding 1 pint (16 ounces) of stock chlorine to each 12.5 gallons of water or (approximately ½ liter to 50 liters of water) to be disinfected. To remove any objectionable chlorine odor, aerate the disinfected water by pouring it back and forth from one clean container to another.

Tip:  For more precise (and in my opinion better) instructions, visit the article How to Use Pool Shock to Purify Water.  In this article, I go into great detail describing plus showing you how to safely use Pool Shock for water purification purposes.

A good reference for this and other purification methods can be found in the downloadable and printable article Emergency Disinfection of Drinking Water.

What About Water Filters?


The use of water filters to make raw water drinkable is another solution to the water for survival dilemma. The nice thing about a filtration system is that it will not only supplement your stored water, but will provide you with great tasting, chemical free drinking water for day to day.

I personally have a Royal Berkey and to tell the truth, wonder what took me so long to discover this alternative to purchased water in bottles and a countertop Brita.

This is not to say that I don’t have bottled water because I do. After all, if I have to leave my home, it would be tough to drag along a 55 gallon water barrel or a Berkey. But for day to day drinking as well as long term survival needs, you simply can not beat a quality filtration system.

Portable Water Filters

I have had good luck with the LifeStraw Personal Water Filter. This lightweight and affordable filter is like an oversized straw. You can use it with a cup or dip it directly into a pond or stream. There are other portable water filtering systems as well and these are handy to keep in your emergency backpack, your car or your travel kit.

Alaska May 2013 410 LifeStraw

Additional Reading

I have written about various aspects of water for survival purposes.  Here are some additional articles for you to peruse as time and interest dictates.

16 Tips for Coping Without Running Water
The Five Myths of Water Storage
How to Use Pool Shock to Purify Water
8 Reasons to Drink Water for Survival
15 Ways to Conserve Household Water Now

The Final Word

Thanks to a tip from a Backdoor Survival reader, I learned that you can find pre-used, food grade, 55-gallon plastic drums on Craigslist for about $25 each. If you decide to check in to this, be sure to confirm that the original contents was food.  Clean them well first with vinegar and baking soda to remove odors, and then with a strong bleach for sanitation.

Here in my area, there is a fellow that sells such barrels and will even add a hose bib at the bottom for a nominal cost. I am not 100% sure I would drink from such a barrel but the water inside should be great for bathing, laundry and housekeeping chores.

Another reader has suggested the use of colloidal silver to get rid of bacteria in water. I have not researched this personally, however.

Whatever your water storage method of choice, I highly recommend that you store at least two weeks of water for every member of your household, including pets.  Please remember that depending on climate conditions, you can only survive for an average of three to five days without the intake of water.

Why take a chance when it is so easy to store water ?

Enjoy your next adventure through common sense and thoughtful preparation!

If you enjoyed this article, consider voting for me daily at Top Prepper Websites!  In addition, SUBSCRIBE to email updates  and receive a free, downloadable copy of my e-book The Emergency Food Buyer’s Guide.

Bargain Bin:  Below you will find links to the items related to today’s article.

LifeStraw Personal Water FilterThe Amazon Top Ten Most Wanted Survival and Outdoor Items   Backdoor Survival:  The LifeStraw is considered the most advanced, compact, ultra light personal water filter available. It contains no chemicals or iodinated resin, no batteries and no moving parts to break or wear out. It weighs only 2oz.  making it perfect for the prepper. For more information, see my LifeStraw review.

Potable Aqua Water Treatment Tablets: Potable Aqua Water Purification Tablets make questionable water bacteriologically suitable to drink. Easy to use and the water is ready to drink in 30 minutes. One 50 tablet bottle treats 25 quarts of water.

WaterBrick Water Storage Containers:  I have not tried these myself but I do know that many Backdoor Survival readers prefer these water bricks to 55 gallon water barrels.

No Rinse Cleansing & Deodorizing Bathing Wipes:  One wipe is more than enough for a complete “bath”.  These are a good backup when traditional showers are not available such as the week or weeks following a disaster.  Also good for the sick room as well as camping, boating, hiking and such.  Here is my review.

Ultimate 55 Gallon Water Barrel Combo: This was the best deal I could find today on 55 gallon water barrels.  Everyone should have at least one.  Remember, if storing in your garage, place the filled barrel on a wooden platform and not directly on the concrete.

DryTec Calcium Hypochlorite, 1-Pound:  This is 68% Calcium Hypochlorite.  As of this writing, the price is under $10 with free shipping.  I purchased Ultima Pool ShockThe Sunday Survival Buzz #128   Backdoor Survival which is 73% Calcium Hypochlorite.  For more information, read How to Use Pool Shock to Purify Water.

Suncast RB50D 50-Gallon Rain Barrel:  A rain barrel is a great way to collect water for, well, a rainy day.  This is the rain barrel I own.  The instructions indicate that it must be dumped regularly to prevent algae formation but since I will be using this “free” water in the garden, it will get replenished regularly by Mother Nature.  That said,  I am definitely going to keep an eye on things.

Sharpie Permanent Markers: The ubiquitous Sharpie pen is great way to mark your water with the date so that you have a reference when it comes time to rotate and replace. Less than $5 for a box of 12 markers is a great price – better than Costco, Office Depot, and Staples.


Shop the Emergency Essentials Monthly Specials

The Perfect Homemade Biscuit Mix from Food Storage   Backdoor Survival

I love my Mobile Washer. This is hand operated washing machine. Like a plunger, it uses a technique of pushing and pulling the water through clothes to clean them well without wearing them out. It uses a minimum of water and less soap due to the agitation motion. Use in a bucket (5-gallon suggested), sink or tub. The best part is the price – only $14.95.


Need something from Amazon (and who doesn’t)? I earn a small commission from purchases made when you begin your Amazon shopping experience here. You still get great Amazon service and the price is the same, no matter what.

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The Amazon Top Most Wished For and Best Selling Outdoor Items
Emergency Preparedness Items from
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Help support Backdoor Survival. Purchases earn a small commission and for that I thank you!



A Practical Guide to Storing Food For the Long Term

99 cents for the eBook – also available in print!

When most people start thinking about family preparedness, they focus on food. Not shelter, gear, sanitation, power, self-defense or the myriad of other concerns that need to be addressed following an emergency or disaster situation. Quite simply, food is the number one concern people have second only to their concern for having an adequate supply of water.

The Prepper’s Guide to Food Storage is a book about food: What to store, how to store it and best practices. It is a roadmap for showing ordinary citizens that long-term food storage is not something that will overwhelm or burden the family budget.

This book is based upon my own tried and true personal experience as someone who has learned to live the preparedness lifestyle by approaching emergency preparedness and planning in a systematic, step-by-step manner.


Survival Basics: Water and Water Storage — 38 Comments

  1. This is a great post but I do have a few more questions. I really do understand about used milk jugs being hard to clean…but, since we don’t drink juice or pop in this house we don’t have access to those jugs. I do however have access to a lot of used milk jugs. Is it completely crazy to think that water could be stored in milk jugs as long as you plan to boil and then filter it before drinking. I do have ‘ready to drink’ bottled water but I could put up so many more gallons if I could use milk jugs and then just plan to treat the water before drinking it. Also, I’ve been wondering about the 2, 3, and 5 gallon buckets that previously held food and can usually be obtained free from bakeries or restaurants. Can water be stored directly into them or are there liners available that could be put into the bucket to hold the water?

    • Hi! Not sure about the bucket question but I can personally guarantee you that milk jugs don’t work. They break down and leak and cause more problems then they are worth. My so uses a c-PAC machine for sleep apnea and I tried storing his distilled water jugs (same as milk jugs) and even in as short as four months they broke down. Hope that helps!

      • I agree with Jody. Milk jugs will not work. I bought water in jugs. The jug seams pop open and the jugs break over time. Short term storage maybe but long term, no way.

        • Yep, I had stored jugs of water (purchased that way) and a few months later I had water leaking all over my shelves…little “seam” leaks..and empty jugs.

    • I have around 75 gallons of water stored in 1 gallon jugs. About half are from distilled water the rest are food grade jugs that held bbq sauce, salsa, etc. I have never had a problem using the plastic jugs (no leaking) and they have been in our basement for over 3 years. I also use plastic jugs for many gardening chores and they hold up for years. I would like to know what people mean when they say the jugs” break down”.

      • It does not appear that you are using milk jugs, which are the main culprit due to milk sugars that can never be completely removed. Milk jugs are also lighter in weight although some dairies may use heavier plastic than others.

        Other types of plastic jugs and especially PET plastic, are sturdier and will hold up better over the long term.

        BTW, I have seen purchased distilled and spring water come in both thin, flimsy jugs and heavier, sturdy jugs. Yours must be the latter if they have held up for years.

        • Yes, I agree with what both sides of the argument are putting forth here. I have had success with distilled water jugs that have not broken down for years. I would encourage you to read the food storage basics article where the types of food grade plastics are mentioned. Take a look at the number inside the “recycle” triangle. Chances are the successful jugs are not the same plastic as the failures. Skip the milk jugs though. Those are for the recycle bin or store something else in them that does not matter. When it comes down to it for the cost of quality products, why take a risk?
          Other comments regarding water;
          The bathtub. If you can see a potential disaster coming, fill it up. They make pods that can hold a lot of water (50+ gallons) in your tub. That can cover your FEMA recommendations per person and some homes have more than one bathtub.
          Rain barrel. I keep thinking about doing this. Not sure the neighbors would want to see them on the outside corners of the house though. Attach to downspout from a gutter. Valve on the bottom to drain before winter freeze breaks it open(if applicable). Use the water for washing, etc.
          Other water filters. You mentioned Lifestraw and we all know there are MANY more out there. A good article on micron filtration vs. distilling vs. boiling, etc., would be great (I have not been reading on this site for very long at all). Sometimes it gets hard to compare products, techniques and so forth. I spoke with someone at length who got hit with Giardia … umm, no thank you, not worth the risk, too scary.

          • Although there are many water filtration systems out there I have found Lifestraw to be the best of them all. Not only the personal Lifestraw filter but the family filter also. All it takes is a little patience (for the system to work its magic) and the Lifestraw family filter can keep a family of three supplied with more than enough clean, drinkable water for a year!

    • You can not use milk jugs period! They are constructed of a diffrent grade of plastic which is bio degradeable. They will retain water for less than a year before they break down. Also the plastic retains residue from the milk, there is no way to completely eliminate the residue. I buy my milk from a farm, I watch the cows getting milked. The farmer has to wash the exchanger each and every time with a cleaning solution the eliminates the residue from the “GLASS”. They never use plastic in milk production, every thing is glass or stainless steel!

      • I actually know very well how hard it is to completely remove all milk residue…We milk our own 2 cows. It is just that I have some neighbors that have offered to me all of their used milk jugs since they buy from the store. Even if I had to completely throw the jugs of water out every year and replace them, I was more questioning about the ability to filter or treat the water stored in them. I mean if I cant filter water from an old maybe contaminated milk jug, then I would question if I could filter ‘wild’ water from a creek or stream or such.

      • i don’t drink milk, so have never tried to store water in milk jugs. but i do buy bottled water in translucent one-gallon jugs sometimes, and i’ve tried to reuse those. they dissolve. it usually takes anywhere between 6 months and 2 years, but they do eventually leak. the only jugs i reuse now are the clear ones, and i’ve never had one of those leak.

  2. Thanks Gaye for these refreshers! Water barrels are one way to go, but for older persons, or disabled, water is heavy to carry from the barrel to where you need it. In those cases I have found water bricks to be the most viable option. You can store them in every room you will need them and they hold 3.5 gallons each and they have a sturdy handle. They stack nicely and are also the best option if you don’t have a garage or basement for barrels.

  3. “While clorine and boiling will kill most microorganisms
    in water, distillation will remove microorganisms that resist these
    methods, as well as heavy metals, salts, and most other chemicals.”
    This is a direct quote from the Red Cross Emergency intructions.
    Water contaminated with metals or poisoned with chemicals can only
    be elimanated by distillation, plus it gets rid of everything else.
    The Survival Still created by Glenn Meder is worth looking into.

  4. Hello, a new reader here and I have not read anything on how to treat / filter water that has been subject to radiation . Any ideas?

    • Curtis, welcome aboard! Check Sawyer water filters and purifiers. There is a difference. I have a couple of their bucket purifiers and several other filters. People also talk about Berkey’s

      • Also, while Red Cross and others do maintain distilling water, and I agree with that advice. Depending on the emergency at hand, you may not be able to have or be able to use your heat source for distilling your water. I do have plans on making a solar distiller also. Remember to all, you must have alternate methods of doing a task. 3 1s 2, 2 is 1, 1 is none.

  5. I have been looking at the 550 gallon outdoor water storage tanks at our local Tractor Supply Company. According to the specs it is made of corrosion resistant polyethylene construction and is safe for drinking water. What would you suggest for cleaning a tank of this size? I have thought of just filling it with water and then treating it if and when we need it. The plan would be to rotate it out every 6 months. Thanks!

    • Your Tractor Supply Company should be able to advise you and what to do mitigate the growth of algae and bacteria in the tank. They may actually suggest calcium hypochlorite (Pool Shock. Regardless, I would do as you suggest and treat the water as your remove it from the tank for use.

  6. When our area faced the microsystin problem it was mentioned that boiling the water would only make it worse and more toxic. Small amounts of bleach however would kill the microsystin and make the water safe to drink.
    I always thought boiling water was always the safest way to go until I heard this.

    • I would say in very dangerous water situations is best to put a few drops of bleach per gallon of water and than run it through a filter system. I prefer the AqauRain Gravity filter over the Berkey because it is USA made and the ceramics (that do the job) are really a much better quality.

  7. Question for readers…I have a potential water source for SHTF scenario, however the water is approx 30′ below ground. (Well) Looking for a portable hand operated device that will bring it to the surface containers. My concern is that most hand pumps need to be primed and perhaps the 30′ of hose below the pump would have to be full/primed as well. Is there a device that will do this without having to be primed?

  8. Remember you can always get water from your sump pump tank. If the power goes out for any great length of time you will have to remove that water or risk a flood. Purify it, re bottle it and it will be good to drink.

  9. I use the large Hawaiian Punch jugs. Large spout, sturdy plastic and the even have sturdy carrying handles. I also found that if you are seeing a need for slightly smaller storage units, Ocean Spray Juice containers work well (large spout and heavy duty plastic).

    I recommend rinsing out whatever containers you use well and then store them for a few days without the cap to air them out. The plastic will absorb some of the original substance. Then, if it loses its smell after a few days, do the bleach sanitizing thing. Simply discard the containers which do not smell clean.

    A final comment, Yes, PCBs are bad, but so is dehydration.

  10. I would suggest the use of Food Grade Hydrogen Peroxide for keeping water safe – chemical sign is H202 – it breaks down to water and oxygen – Chlorine creates

  11. Hey everyone,
    Certainly there’s a lot of ways to store water. I’m fortunate enough to have extra space, so I use the 275 gallon chemical pallet tanks that I got from a farmer buddy. The tanks used to hold Roundup herbicide. Yucky stuff, I know. It can be cleaned out though. I used 5 gallons of ammonia from the local dollar store, and 5 gallons of water. After first flushing the tank VERY well, I simply poured the ammonia and water in the tank, and let it set for 15 minutes. Then I flipped the tank on it’s side for another 15 minutes. Then the next side, and the next, and finally the top.then I filled the tank the rest of the way with water and let it set a few days. I drained it, rinsed it out extra well, and filled it again. I change the water every couple of months afterward, because there’s certain to be the tiniest amount of chemical residue leaching from the plastic of the container. After the second filling, I’m fully confident the water is safe to drink. You won’t need to sanitize the tank with bleach after the ammonia, as ammonia is a sanitizing agent. If you feel compelled to do it anyway, NEVER NEVER mix ammonia and bleach!!!!! Sometimes you can get these containers used from the local Coke or Pepsi plants. They hold syrup, so the super cleaning procedure isn’t necessary. They will flavor your water though. sells these tanks new for about $479, and some 5 gallon jugs too. I got mine for for free, and spent about $6 on ammonia. As mentioned in the article, the 55 gallon drums are a great choice though. You could also use 5 gallon soap jugs from the local car wash or detail shop. Clean them the same way as the big tanks.

  12. I meant to ad that these big tanks can be stacked 3 high. That’s about 2350 pounds for each full tank, so your location has to able to hold the weight. I personally have 2 tanks. That’s about 550 gallons of water reserve – enough for 1 1/2 years at the minimum usage. They’re stacked into a space 40″wide x 48″deep by about 92″ high, so it COULD fit in your basement…

  13. is an awesome source for odd stuff for preppers. They have chemical suits, mylar food storage bags, food grade buckets, desicant, and oxygen absorber packet, etc……………. Check out these links:
    275 gallon IBC tanks:
    Various sized plastic drums:
    % gallon stackable plastic Jerican jugs:

    • the #1 item from ULINE on my wishlist is the film coating that supposedly makes windows bulletproof. But it would cost $200 to do my whole house so on the wait list it remains. You are absolutely right though, I have their latest catalog and it is a preppers dream for sure.

  14. Something I like to do is fill used, cleaned and sanitized 2 liter pop bottles, with water and put them in the large freezer in my garage. If the power goes out for a long time, I have frozen water to keep perishables fresh. The bottles keep the water contained as they thaw.

  15. Dear Gaye. Do the water bottling instructions from this post mesh with the instructions given by Glenn on the recent podcast? I was not able to attend the podcast but listened to the replay a couple of times. It was amazing to learn the science behind water purification. I think I might need to redo all my water bottle storage. Gaye you really bring amazing resources BDS. I continue to learn something new all the time. Karen S.

  16. Hi everyone, I read in an old book once about people using rinsed out bleach bottles to store water. The bottle is made to not corrode, and the bleach residue would purify the water. Any thoughts? (Obviously scented bleach would have additives, but I don’t see why this wouldn’t work for plain-ole bleach.)

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