Where is your favorite water purification or filter?
I'm looking for new options...

For backpacking I am currently using a sawyer mini plus katadyn micropur tabs for backup. Most who use sawyer filters prefer the sawyer squeeze..little larger and more flow.

Can´t say it is my favorite `cause I have only one. Grayl Geopress.

I usually EDC a Whirl pak bag and chlorine dioxide based water purification tablets in wazoo cache belt. If I'm deliberately going outdoors I'll usually throw a folded up 1L Evernew and same tablets in cargo pocket among some other items in case I get separated from my bag (on the boat I'm often not wearing it)


My bag will have the full gamut (metal container, water filter, extra evernew bottles, purification tablets, hydration bladder etc). Still using a sawyer mini but might look into Katadyn Befree and CNOC bladder next time as they apparently have a much better flow rate, but it also has a non standard thread and a larger stored diameter. It should be noted that I'm not a thru-hiker and I don't use the filter regularly, it's more of an emergency item. If it was an every day thing I may prioritize flow rate over compactness

I really like The Grayl.

https://grayl.com/

Removes virus as well as bacteria. Little pricey per gallon, but foolproof.

Don't understand why they didn't make the outer cup thing metal.

Same with other bottle style filters. Like Aquamira's is stainless steel bottle, but double walled *facepalm*.

You'd have thought being able to boil water in a pinch if the filter dies/freezes/breaks would be a good selling point.

I've never owned one, but one thing I like about Grayl is the claimed removal of some chemicals and heavy metals. I carry the Sawyer mini in my kits, and it doesn't claim to do that.

Yes, I'm learning about the differences in filter capabilities - some filers, others purify and only a few handle nasties like heavy metals..

They had one made out of stainless, but it appears to be discontinued and I'm not sure why. At least you could use it to boil water if the filter broke. May be a niche in the market for a stainless steel cup that fits on the bottom of the bottle.


It's cool that the grayl is supposed to filter viruses, but I'm hesitant - not just because of it's low volume to size ratio, but because it's plastic and you're expected to lean your weight on it to filter the water. Several reviewers on amazon have complained about it breaking. It would be prudent to have a backup way to make water safe if one decides to use it.

Ah wasn't aware of the stainless one. Managed to find an article and pictures.

https://soldiersystems.net/2015/04/30/grayl-water-filtration-cup/

Seems they still added a plastic bottom to the outer cup. Though is removable apparently judging from a comment.