Sawyer mini still works? after freezing

[Phantom Grappler]

Recently camped, over night low 24
I failed to keep filter in pocket overnight.
Our backpacking trip morphed into car camping
We used our bottled water instead of filtering
Filter hung inside pack at end of hammock
About two months ago when returning from backpack camping, I backflushed sawyer mini at home. Then there was a Phantom guess.

Why not backflush with water first and then backflush with air (in both directions), in an attempt to remove water from inside filter.

At home today, I “checked” filter, and it seemed to work. Water flowed through same as new
I have no idea if it’s actually working
I can’t see germs and micro particles in water!
Lots of stuff I don’t know

Maybe I lucked out
And maybe my “luck” had nothing to do with backflushing with air after backflushing with water Just because something still works does not necessarily mean I caused it to work

Your thoughts and experience
Thanks

[MAD777]

After freezing, the filter material likely cracks. These fissures allow whatever through. For me, the reasonable price of the filter is worth avoiding the aftermath of drinking bad water.

Sent from my Pixel 2 using Tapatalk

[MikekiM]

While I like the idea of the double flush.. my choice would be to replace that filter if it froze. Cheap insurance me thinks.

[Phantom Grappler]

Better to err on side of caution
Although...
These filters, when new, are shipped from manufacturer to a distribution warehouse and then shipped again in a tractor trailer to retailer.
When these “dry goods” are shipped, they are probably shipped in a freight trailer that is not temperature controlled. Whole pallets of new water filters could be subjected to freezing temperatures. With no damage?
I do knot know
From now on 2Bsafe, I’ll drink fermented beverages...
Or I’ll do asbestos I can to mimic Shug’s Carl Childers voice...uuuhhh that’s a purdy boil

4mycoffee

[scrope]

Better to err on side of caution
Although...
These filters, when new, are shipped from manufacturer to a distribution warehouse and then shipped again in a tractor trailer to retailer.

It's not the cold that's the problem. You could take a brand new unused one outside in sub zero weather and it would be fine. It's once water is introduced. Water expands when frozen and cracks the filter.

[SilvrSurfr]

I do knot know
From now on 2Bsafe, I’ll drink fermented beverages...
Or I’ll do asbestos I can to mimic Shug’s Carl Childers voice...uuuhhh that’s a purdy boil

You gotta be on a cell phone - "knot know" and "asbestos I can" are just classic!

[TxAggie]

A filter that has been “broken” due to freezing still allows water to pass through. The issue of that the micro pores may have split and are now larger than spec and allow contaminants thru. There’s really no way of knowing your filter has become compromised. At least not until you get sick from using it.

I’ve switched to aqua Mira anytime I’m concerned about freezing.


Sent from my iPhone using Tapatalk

[Phantom Grappler]

You gotta be on a cell phone - "knot know" and "asbestos I can" are just classic!

SilvrSurfr, right you are, I’m on cell phone
Sometimes I misspell on porpoise 4your entertainment.
Merry Christmas to you SilvrSurfr—raconteur extraordinaire

[peeeeetey]

20$ is a cheap option as opposed to a serious illness. Stay well, PG and Merry Christmas.

[MikekiM]

.....I’ve switched to aqua Mira anytime I’m concerned about freezing.
Sent from my iPhone using Tapatalk

I've switched to Aquamira full time.

Having to wait a few minutes for water to treat is a bit of a PITA but not having to carry multiple clean and dirty vessels makes up for it.

SilvrSurfr, right you are, I’m on cell phone
Sometimes I misspell on porpoise 4your entertainment.
Merry Christmas to you SilvrSurfr—raconteur extraordinaire

I appreciate your misspellings and use 'of the third party' Shug style dialog.

Have make plans to hike together... Gotta bet you'd be a pissa to hang with..