Cheap water purification using: SODIS

[Hutzjohn]

You are not purifying the water you are pasteurizing it. It will not take anything out of the water only kill the organisms that will make you ill. If I remember correctly the water has to reach 160 degrees and stay at that temperature for 30 minutes to be safe to drink after it cools off. But good video and good info for emergencies for those that don't know. Also put, as a strainer, a piece of cloth (hankie, shirt) over the mouth of the bottle before filling will help.

[wildernessinnovation]

@Hutzjohn In answer to your comment, we are not pasteurizing the water in the SODIS method. It does not require high temperature to work, although that is even better if you have it. The following from SODIS-->Clear PET bottles are filled with the water and set out in the sun for 6 hours. The UV-A rays in sunlight kill germs such as viruses, bacteria and parasites (giardia and cryptosporidia). The method also works when air and water temperatures are low. Thanks for your comment!!

[grow2b]

I presume using glass bottles are just as good, if not better, so long as they don't break. Glass bottle was sustain heat so if you want hot water let it stay under the sun longer--no?

[wildernessinnovation]

@grow2b Glass is not needed, but can be used. The key is not to use anything that blocks UV as that is the primary means of disinfecting water. Remember nothing over 3 liter in size as the thickness will prevent disinfecting of the water on the far side. This idea is designed to help those in third world countries with horrible water supplies the ability to have clean water inexpensively with readily available materials.

[yetaca]

can this help at all with evil fluoride in water?

[wildernessinnovation]

@yetaca The SODIS method is for purifying water of organisms only, it does not do anything for chemicals in the water, you would need a separate method for that. But for survival in tough times, SODIS is perfect!!

[asiannangel]

if the water is green, but clear, is it still useable?

[wildernessinnovation]

@asiannangel Yes it is, as long as it passes the clarity test described. I would recommend straining it through a cloth like a T shirt however, since the more clear the water is the less UV rays are inhibited.

[PimpitVideo]

ill piss in it you drink it OK? is that fine by you.

[MrYourSpacer]

Interesting to know this.

What about the transfer of substances between the plastic packaging and water?

I know its PET but i don`t trust FDA.

[wildernessinnovation]

@MrYourSpacer There is nothing to be concerned about using clear PET containers. This about as safe a way to purify water as there is. Think about what your options are, some chemical treatment or boiling. Even if some miniscule substance entered the water from the plastic, the far greater danger is some disease or organism. Since a person can't go without water we must choose the best method a the time to provide safe drinking water.

[wildernessinnovation]

@MrYourSpacer The main point is dying of dehydration, or one of the many other maladies that could be present in the water, which are pretty certain vs possibly winding up with some effect of plastic components after 20 years of constant use. It's even better to drink untreated water than die of dehydration. However I think this method is as safe as any. Our bodies are exposed to all kinds of unknowns daily, natural or manmade, effects unknown...thanks!!

[niggerplease17]

Thanks for making this video.

[3344utube]

use black spray paint on roof etc.or paint back half of the bottles and use a car window shade to reflect more light on bottles.

ahead of time research on web ,and practice with a sun cooker,-old satellite dish with Mylar strips cut from inside snack bags then brush on white glue(mix with a little water) and let dry.

use something to prop it up and angle it towards sun.must WEAR sun glasses. use a THIN dark bottom pan (you can spray paint it) with a lid and it will get to a simmer.

[etphonehome2915]

the uv destroys the dna of the viruses and bacteria. great stuff

[Dubconferencedotorg]

I love this .. bless you from German pope ;o)))

[duvexy]

I bought these iodine tablets that cleans water that I bought to carry with me to clean water.

[DoctorSess]

this is a good solution if you dont have the time or means to start a fire and boil it i suppose? thanks.

[wildernessinnovation]

@DoctorSess Thank you. One of the features of SODIS method is that you can do it long term without needing supplies of chemicals or even the need for fire. If you had a few 2 liter bottles or standard water bottles, every 6 hours of sun you have a new supply. Once you start a rotation with the appropriate number of bottles you are good to go long term, thanks again for your comments.

[wildernessinnovation]

@purity4all Thanks for the comment. The Swiss group that pioneered SODIS for use in 3rd world countries, did all the research based on using clear PET plastic bottles smaller than 3 litres. I would have to caution with using anything else. They found that the UV rays from the sun are the primary means of disinfecting the water, anything different may not work as well. Anything coated or treated to block UV would not work. Clear glass would seem OK, but without testing I don't know. Thanks again

[catchick13]

@purity4all Glass blocks UVA radiation that disinfects that water, which is why they recommend plastic which allows sunlight to travel through, preferably PET (1) bottles.

[catchick13]

@purity4all You're welcome. Doing research for a blog topic on the subject for Healthy House Institute . com. Perhaps I'll post it here when finished.

[SpeakingSpirit]

@purity4all AS long as you don't use the large 15 and 19 Lt big bottles, all other bottled water PET bottles are safe and DON"T leach any chemicals, it is only the large home and office delivery bottles that have the BPA chemicals that leach into the water. And if you are referring to dioxins leaching in the water, there are no dioxins in the plastic to leach in, that was a hoax email saying that.

Glass has been tested and didn't work as good as PET bottles.

[wildernessinnovation]

@purity4all The point of all the research from this organization was to find something inexpensive and effective for use in 3rd world countries especially. The PET plastic used in water bottles was not found to have any leaching effects while at the same time it passes the UV rays from the sun that do the work, whatever you use must do the same. It is best to use exactly what they have tested, that way you know it will work. Note it cannot be larger than 3 liters either. Thanks!!

[FreeFishingLessons]

Will artificial UV light work?

[wildernessinnovation]

@FreeFishingLessons My understanding is yes, but you would have to find out how strong the UV needs to be. I like the SODIS method because it's free solar power.

[lovecars890]

Very good video! I want to do this experiment for my Science Fair project this year. Do you recommend me to do it? By the way, one of the thing I am concern about is where to get the dirty water. What is a good source to get the water from?

Thank you very much for this idea!

cheers

[scarz1951]

The latest research says that the UVA in sunlight damages the chromasomes in the wee beasties and prevents them from multiplying. They are still alive when you drink the water but soon die in your system and since they can't reproduce the ones that make it in your system are no problem as long as the ttreatment was long enough. How long is long enough? I don't know but 12 hours has been reccomended.

[wildernessinnovation]

@scarz1951 According to the Swiss research at PET bottle (clear) 2 liters or smaller needs 6 hours of full sun to kill or incapacitate the bad guys. So generally 1 day most of the time, 2 days when full sun not available. Also if the back half of the bottle is painted black, or it is lying on a dark surface, the increased heat greatly increases the effectiveness. Thanks!! Have a great day

[scarz1951]

@wildernessinnovation Thanks for the info. That could come in handy some day. I hope we never need it but with this the way things are going it's better to be safe than sorry. What's that they say? Failing to prepare is preparing to fail?

[stt60]

Very informative. What other water have you tried? I'm thinking ditch water , irrigation water that is run off from farm fields that is full of fertalizer, pestisides, does this process have its limits.?

[wildernessinnovation]

@stt60 This process will disinfect the water of organisms, ie. virus, bacteria, giardia, etc. It does not do anything for chemicals. In an emergency I would not worry too much about the chemicals for a few days water, unless the fields were just sprayed, even then if you need water temporarily, better than dying. I think you can take charcoal from a fire and smash it down in a cloth and let the water run through it, it can take some chemicals out.

[Fishermanfred1]

Great job ! Thanks

[wildernessinnovation]

@Fishermanfred1 Thank you for watching, it is very effective.

[oregonmikes]

Thanks for the video Perry. I missed this information until now, into the brain it goes.

[wildernessinnovation]

@oregonmikes you are welcome, let me know if you need anything else

[johncajunmanbrown]

I've been in some poor rural parts of Latin America where this is a very common way to purify water. I'd boil if I could, but this will work! Thanks for the video!

[wildernessinnovation]

@johncajunmanbrown Thanks for the first had experience.

[ConnerPlainLiving]

Cody Lundin talks about that in his books, He has some good Youtube videos at abodudeman.

[hobbexp]

it sound to good to be true

thanks

fredde

[cdltpx]

That stream looks so cool makes me want to go soak in it on a 90 degree day.

There is a solar oven system that offers a glass tube with wax in it they call it a wafi i think what it does is when the wax melts and raises to the top you know the water is pasterized good enough to filter then drink. around 160 degrees