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HomeHomeDiscussionsDiscussionsGeneralGeneralCold weather water purificationCold weather water purification
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3/11/2021 8:24 PM
 

I was all ready to buy a First Need XLE purifier, and I've got just the pack to carry it in!  But, then I realized its filter is ruined by a freeze.  How do you handle water purification in freezing weather?  What if there isn't snow to melt?

 
New Post
3/12/2021 7:46 AM
 

Can you break up ice and melt it?  What's the wood availability like?  

 

 
New Post
3/13/2021 3:34 PM
 
I use a filter in sub freezing temps all the time. Just take care to thoroughly clear it by pumping it a while after you've removed the intake hose from the water. I also suck on the output with my mouth at the same time so as not to waste water and also make sure the element is good and clear of water. Don't tell anyone who has borrowed my filter on the trail...

We are fortunate in this matter that your conduct will be your marker and, thus, your reputation. The conduct of others on this forum has been, and will continue to be, their marker, and thus, their reputation. In the west, a person invests in one's reputation carefully. - 112Papa
 
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3/13/2021 7:54 PM
 

Thanks!  That's exactly the sort of answer I was looking for.

The MSR Guardian seems like an acceptable solution for the backcountry.  It's like a continuously self-backflushing, hand-pumped Sawyer that also removes viruses and that can be frozen.  It's allegedly grunt-proof.

But, I've never actually been in the backcountry and won't have an opportunity for some time.  In the meantime, I'm learning and practicing at local campgrounds.  My local campgrounds are surrounded by farm fields.  Farmers love chemicals, and chemicals love to run off.  So, I really want something like a FirstNeed or a Grayl Geopress that will also remove at least some of the chemicals.  I don't feel the need to mutate any more superpowers.  It doesn't seem like your procedure is adaptable to a geopress, so I'm getting a FirstNeed.

 
New Post
3/14/2021 7:59 AM
 

I've had the same Sweetwater for a pile of years I think Sweetwater was bought by MSR, and it can handle being frozen.
I've always tried to prevent that, but not always succeeded.
I also believe that the MSR Guardian can handle being frozen, I figured if my Sweetwater gives up before I do the Guardian was the next one I was going to look at.
I'm not saying it's wise or right, but my twisted logic is cold water has less of a chance of stuff growing in it so I'm more apt to drink it unfiltered in the winter, but I also do it in the summer sometimes, but I've also gotten sick. So consider the source of information before you follow any advice from me........LOL

 
New Post
3/18/2021 4:10 AM
 
If it weren’t for the chemical concerns I would have said get the steripen prefilter and steripen and or aquamira. Also the katadyn combi say it does everything and reduces chemicals.
 
New Post
3/18/2021 2:48 PM
 
I would recommend doing some research on the steripen. I am aware of three different independent laboratory tests were the steripen absolutely and completely failed. Not as in kind of worked, but did not work at all.

Co-Owner Hill People Gear "If anything goes wrong it will be a fight to the end, if your training is good enough, survival is there; if not nature claims its foreit." - Dougal Haston
 
New Post
3/18/2021 4:40 PM
 
scothill wrote:
I would recommend doing some research on the steripen. I am aware of three different independent laboratory tests were the steripen absolutely and completely failed. Not as in kind of worked, but did not work at all.


Scott,

I will definitely check that out. It's not my only way to clean water I have. But it has been my go to in cold weather and for SAR. After I had a sawyer and platypus filters fail do to forgetting to stick in my sleeping bag I got it. I always have aquamira on hand as a back up though. 

 
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