Steripen users:

Joined
Apr 12, 2018
Messages
91
Location
SE Wyoming
So I’ve always used a 32oz Nalgene with my pen, this year I switched to two 48oz Nalgenes. My mind says use the steripen 2x to be sure. Does 1L and 1/2L as you already know. Anyone using their pen with a larger Nalgene or is it not recommended because it can’t get enough light transmission? If it’s the latter not the former, I guess my fate is in Gods hands now cause I drank some stagnant water from a weep on the side of a mtn and looked like cattle may have used it early in the summer
 
I carry 1x 32oz and 1x 48oz for this reason, use the 32 for purifying and the 48 for my 'bladder' with a hardside hydration setup.

Id bet hitting a 48oz 2x will probably be fine but I personally wouldn't risk it, 80oz is still plenty for me and I have a 4L bag that I keep if I need to haul a bunch of dirty water up to camp and can steripen it 32oz at a time.
 
I carry a nalgene and treat that with steripen, I also carry 1 or 2l platypus bags all the time and treat those with aquamira when I fill them up.

I did just pick up the katadyn be free to try next week at duck camp and the week after we head to CO again, and all that will do is replace one of the 1l platypus bags, If i like it i'll get rid of the steripen and treat into a nalgene/1 or 2l bags accordingly.
 
I'm sorry I just realized I didn't answer your question, I just do whats recommended which is NOT a 48oz. I've had giardia once and I'll do everything in my power to not have it again. my .02 sorry again!
 
I ditched the steripen after getting sick from water several years back. We were up high and only had little seepy water to fill from and there were unavoidable floaters in there that I think prevented the pen from working well enough. If you are gonna use one have something as a prefer like a bandanna or something.
 
So I’ve always used a 32oz Nalgene with my pen, this year I switched to two 48oz Nalgenes. My mind says use the steripen 2x to be sure. Does 1L and 1/2L as you already know. Anyone using their pen with a larger Nalgene or is it not recommended because it can’t get enough light transmission? If it’s the latter not the former, I guess my fate is in Gods hands now cause I drank some stagnant water from a weep on the side of a mtn and looked like cattle may have used it early in the summer
I would run it twice, which should give enough light contact time. I
 
I ditched the steripen after getting sick from water several years back. We were up high and only had little seepy water to fill from and there were unavoidable floaters in there that I think prevented the pen from working well enough. If you are gonna use one have something as a prefer like a bandanna or something.
Yes, if there is turbidity in the water, you should use a prefilter, and Steripen sells them.
 
Yes, if there is turbidity in the water, you should use a prefilter, and Steripen sells them.
Yup. But I switched to using the BFree squeeze filters and way prefer them. Not letting them freeze is a limitation for late season but otherwise a much faster set up for early season or fast long hiking events since you can just grab and go as you cross water. I also now have an old school style pump filter which can be nice when there’s very little water to actually fill a bottle by scooping - but that’s pretty much their only advantage.
 
All solid advice fellas. Looks like I’m waiting around to see if the G bug hits. I ran steripen in the past with 0 issues but also only in a 32oz bottle.
I hit my 48oz 2x every time this last week but unfortunately the closest water was a seep 100 yards down hill from me which was crazy convenient. Otherwise it was dropping ele for .6 miles to running water. This water definitely had floaters in it but I always drink LMNT so I couldn’t taste the difference but I was not loving the idea. I carry a 4L dirty bag to fill and filter as needed but only had
My big bottle this trip.
Say a prayer for me boys 🫡
 
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