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Prepared #5 – How To Purify Water – Fundamentals (Preparedness Series)

LDS - How To Purify Water

Hi! This is Rick and in today’s episode I’m gonna be talking all about purifying water.

Now, for the sake of this video, I’m going to assume that you’ve managed to get hold of some water from a fairly clean source – perhaps a fast-flowing river or a fairly clear lake or rainwater, which I’ll be using, personally.

First up is boiling. Very straight-forward, it’s a time-honored way to making your water safe for drinking. All you do is you put that water into a clean container and you bring it to the boil. Now, there has been a lot of – there is a lot of speculation on the internet about how long you boil it for. My most recent research has suggested that the moment it starts to boil. That’s all you need to do. The only exception to that rule is if you’re at high altitude – you may need to run it on a rolling boil for a set period of time which I believe is about 3 minutes.

Now, another option for boiling water without electricity or gas is something like this. Some of you may not know what this is – this is called a Kelly Kettle. And these are quite ingenious and rather excellent. What it is, it’s like a funnel-shaped, chimney thing but it’s hollow inside. And what you can do is you pour water in there – a couple of pints, I think and all you do is put a few dry twigs or bits of paper in there – it’s got a little air hole and you light it. It sort of makes a little jet engine, it’s really quite cool. You just turn this hole so that it’s facing the wind – obviously, you’re doing this outside. And what happens is you get this little jet engine coming out here. It doesn’t take very long at all because the water is so close to the flames going on here. You can have boiling water just in a couple minutes. This is a really, really worthwhile investment. I recommend this to everyone.

Now the second and highly-effective way of purifying water is through chemicals. Now there are two main chemicals available to you. One of them is iodine and the other is chlorine. I personally don’t recommend iodine simply because it’s only good for short-term use. Now, based on that information, my chemical of choice is chlorine. Now there are several ways that you can obtain chlorine. First of all you got chlorine tablets. These are specifically designed for the purification of water – you can get them on places like eBay. They’re not too expensive, although they’re not that cheap either.

A cheaper alternative is something like ordinary household bleach. Now you have to be really careful here. Here are two different types of household bleach. This one is suitable, this one is not. This one is thick bleach and it has other chemicals in it that are really not good for you, no good whatsoever. What you want is basic, thin bleach. Okay? The only ingredient that you need is sodium hypochlorite.

Now, I’m not a huge fan of these types of bleaches because they’re not that specific on their ingredients – all it says is “Chlorine-based bleaching agent and disinfectant”. So, it’s not telling me what I want to know. But quite recently, I did discover baby sterilizing fluid for baby’s bottles and everyday use. The one listed ingredient on this is 5% sodium hypochlorite. And that is exactly the ingredient you need to sterilize your water.

So in order to sterilize water – let’s say I just got this out of the water barrel, this is rain water – this is about half a gallon. So what I need to do is take about, for half a gallon I’d need between 4-8 drops, depending on how contaminated I believe that water is. Just put 4-8 drops of this sodium hypochlorite into the water. Give it a little shake and then leave it to stand at least 30 minutes, preferably 45 minutes. Now, the important test here, after 45 minutes, you should be able to take the lid of and if you smell faint chlorine, the water is safe to drink. If you can’t smell anything or it doesn’t smell quite right, then you do it again, you add the same amount, put it in, leave it for 45 minutes, give it a shake and then again take the lid off. And it’s only when you can smell faint chlorine, is it safe to drink.

Now, when using chlorine, it’s very important that the water is very clear and clean. Because any particular matter – what can happen is in the little particles you can get viruses that actually hide in the particular matter and the chlorine can’t get to it. So you still end up with contaminated water, even though you’ve added the chlorine. So it’s very important to make sure that the water that you use with chlorine is clean.

Now if you’re water source is potentially contaminated, you need to go a step further and you need to filter that water. Now, for filtered water, obviously you’re gonna need some sort of filter. There are several on the market –there are lots on the market – I’ve got two here to work with and a third option that I’ll show you in a minute.

First option is – this is something called a Hydropal and it’s obviously like a sports water bottle. And the cool thing about this is, if you take the lid off, it has its own built-in filter. Now, I believe this is a charcoal-based filter. You can get the ceramic type filters as well which are extremely good for filtering out really nasty bugs and viruses and things. The only thing with this is, when you use it, you can go to a stream or lake or any source or water – preferably the cleaner the water, the better – scoop it up, but what you do need to do is add a chlorine table to it, give it a shake, leave it for about at least 30 minutes, preferably 45 and as you draw the water through, you’re drawing through the filter and it’s taking out all the nasty stuff. So that’s one option.

Another option is to get a drinking water purifier. Got one here. You can go to essentially any source of water, you plug it in: this is the pump, this is the filter, you put the hose into the lake or wherever you’re getting the water from, you use the pump to pump the water through. It pumps it through a ceramic filter which takes out virtually anything, including bacteria and viruses and what comes out of this hose is pure, drinking water. Now these are absolutely excellent, especially the ceramic ones are very, very good. The only thing is they’re quite expensive.

Now, finally, if you are struggling to get water that is relatively clear, if you don’t have a sort of a fast-moving stream or relatively clean lake or don’t have access to rain water, there is a way of getting around it. I found these on eBay – extremely useful. These are used for biodiesels and what it is it’s an industrial filter. And you can get various grades – this particular one is a 1 micron filter. You can put dirty water in here. It can have a lot of particular matter and stuff like that. And what comes out of the bottom should be relatively clean water. What you do is you catch it in a glass jar or something where you can actually see the color of the water. Catch it in a glass jar, let it sit for probably an hour, maybe two and hopefully, any sediment is gonna settle down and you should end up with some relatively clean water.

So that’s it for this video. This was just a very, very brief touch on the very, very basics of purifying water. I hope this information was useful to someone. Obviously, this is now knowledge that you have. Hopefully, you will never need it.

So thanks for watching and I will see you in the next episode!


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