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Yesterday at 09:18 PM Industrial/agricultural water contaminants? by JeffMc

Like most of us, I'm fairly well versed on the risks and available treatments to make backcountry water contaminated by bacteria, cysts and viruses safe to drink. But I wonder about dealing with water that may be contaminated by various industrial chemicals, fertilizers, and all the effluvia that may find its way into surface and subsurface waters, especially in the frontcountry.

This may be a particular concern in the aftermath of disasters. Obviously, there are many such contaminants that simply cannot be dealt with by any any reasonable filtration or treatment process, but I wonder if there any available practical ways to recognize, identify or test for any of these contaminants, short of just giving some to someone I don't particularly like and seeing what happens?

Any thoughts appreciated. Thanks!

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Yesterday at 02:51 PM That's The Way To Do It. by Ian

Lost Scouts

BBC News.
"Five scouts have been found safe and well after an overnight search in a forest in south-west Scotland.

The four boys and one girl were reported missing on Monday afternoon.

The last confirmed sighting had been at Clonfeckle Tower. The scouts, all aged 13, had been due to walk to Craigshields, north of Ae Forest.

They were reported to be equipped with adequate outdoor clothing and torches. They were found and brought to safety by police officers.

Scout Leader Dan McIntosh praised the actions of the group - from the Greater Manchester area - on realising they had lost their way.

"They looked again at the map, they found somewhere where they had walked past already where they knew they were near the road and they could find shelter," he said.

"They went back there and managed to sort themselves out, calm themselves down, think, plan and from there they were basically prepared to wait the night out and then move on.

"But they didn't have to, they saw the helicopter, went out to the road and signalled the helicopter."

He said they had acted "absolutely fantastically".

"You couldn't have asked them to do anything better than they did," he added.

"Everything they did was sensible and everything worked and that's what they were supposed to do.""

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Yesterday at 01:18 PM clorox and water purification by nursemike

I found MSR chlorine tabs and a Sawyer microfilter in Wally world, which brought them into my price range. Plenty of water here in SE Florida, but the range of bacterial contaminants is terrifying. That prompted a review of my information on using sodium hypochlorite/clorox for water purification, and renewed a longstanding irritation about the cavalier use of "drops" as a unit of volume. Drops ain't uniform: iv administration sets can deliver 60 drops per milliliter or 15 drops per milliliter. Depends on the diameter of the drop orifice, viscosity of the liquid, and probably some other stuff of which I am ignorant. I did find a CDC reference that offers both drop notation and metric equivalence: 8 drops/ 0.75 ml per quart for clear water, 16 drops/ 1.5cc for cloudy.

This gratifies the physical chemist deep inside, tho the organic chemist aspect of my personality suggests that drop measurement is close enough.

Edit: Consensus also seems to be that regular vs concentrated clorox are not different enough to warrant a change in volume used. Metric syringes are widely available through pharmacies, craft stores, and American Science and Surplus website (sciplus.com, no affiliation).


158 Views · 5 Comments
07/24/15 05:09 PM "Climate Change" Discussions are Political by Doug_Ritter

OK, folks. After discussion among leadership, I have decided that I have had enough of "climate change" on ETS. This is much more of a political issue than anything else and equally inappropriate on ETS.

So, in keeping with our longstanding policy on political issues, "The Survival Forum Rules and Courtesies" will be updated to reflect this policy clarification.

Thanks for your understanding.

186 Views · 0 Comments
07/24/15 04:21 PM Additions to commercial 3 day packs by TeacherRO

What changes would you make to the standard, off the shelf 3 day post earthquake packs?

607 Views · 14 Comments
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