Posted: 12/14/2015 3:01:17 PM EDT
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Just saw this product today. Rated to remove heavy metals and chemicals along with the standard viruses, cysts and protozoa we are all so familiar with.
What thinks the hive? http://www.puralytics.com/html/solarBag.php |
| I used to be involved with water and waste water. Many such items are gimmicky and do far less than they seem to. Giving the ads only a superficial look it MIGHT be ok, Will have to look more closely. If it gives the full estimated use then you're 'paying' about 26 cents per gallon. It is interesting enough for me to examine the claims in more detail. |
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What kind of "pre-filter"? Is sunlight REQUIRED for safe drinking, or is it value added? I'd pass and go with a reliable filtration method. Same reason we don't RELY on lenses to start fire: Sun isn't always available, plus you need to sit in the same spot (or at least constant sunlight possibly all day. No thanks. |
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Quoted: It kills bugs just by exposing it to sunlight. That's it. Gimmick. Of course they say they are degraded to minerals, whatever that means (I don't consider carbon and hydrogen minerals, so my BS meter was pegged at that statement). Then they claim metals are sequestered by the insert. Again, big claim, but no explanation of how that accrues. If I had the time, I would get one and test their claims, but I simply don't (I am an analytical chemist). I will pass. The only cert they list in the US is for degradation of microbiological, and sunlight alone can do that. |
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Quoted:
No, they say that chemicals are catalytically degraded, with UV activated catalytic degradation. Of course they say they are degraded to minerals, whatever that means (I don't consider carbon and hydrogen minerals, so my BS meter was pegged at that statement). Then they claim metals are sequestered by the insert. Again, big claim, but no explanation of how that accrues. If I had the time, I would get one and test their claims, but I simply don't (I am an analytical chemist). I will pass. The only cert they list in the US is for degradation of microbiological, and sunlight alone can do that. Quoted:
Quoted:
It kills bugs just by exposing it to sunlight. That's it. Gimmick. Of course they say they are degraded to minerals, whatever that means (I don't consider carbon and hydrogen minerals, so my BS meter was pegged at that statement). Then they claim metals are sequestered by the insert. Again, big claim, but no explanation of how that accrues. If I had the time, I would get one and test their claims, but I simply don't (I am an analytical chemist). I will pass. The only cert they list in the US is for degradation of microbiological, and sunlight alone can do that. Oh man if someone with the right equipment were to get one of these it would be interesting to see.... 
If it did work it would be the only thing out there for heavy metals right? |
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Quoted: Oh man if someone with the right equipment were to get one of these it would be interesting to see.... If it did work it would be the only thing out there for heavy metals right? Quoted: Quoted: Quoted: It kills bugs just by exposing it to sunlight. That's it. Gimmick. Of course they say they are degraded to minerals, whatever that means (I don't consider carbon and hydrogen minerals, so my BS meter was pegged at that statement). Then they claim metals are sequestered by the insert. Again, big claim, but no explanation of how that accrues. If I had the time, I would get one and test their claims, but I simply don't (I am an analytical chemist). I will pass. The only cert they list in the US is for degradation of microbiological, and sunlight alone can do that. Oh man if someone with the right equipment were to get one of these it would be interesting to see.... If it did work it would be the only thing out there for heavy metals right? |
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Quoted: Doesn't the UriNation recommend placing clear plastic bottles of water in the sun for 24 hrs? It is actually (at least to me) surprising that this seems to work with plastic water bottles. Most plastics do a decent job of absorbing UV radiation. PET, used for most plastic bottles does a great job absorbing below UV-A  But apparently enough of the UV-C gets in there to "pasteurize" the water. I would think glass would do a better job, but that is just a guess (the above is for green and brown crown glass). Maybe UV-A in sufficient amounts can also do enough damage.The water would likely have to be fairly clear (settled). I would not trust any cloudy water, or water that had settled material on the bottom of the bottle, as that would provide protection from the UV. Settle it out first, then decant and use the sun to reduce pathogens. |