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Question by huntfishVA. Uploaded on April 29, 2009
Most filter everything other than viruses. From what I've been told, viruses are more of a concern South of the border, in jungle areas. The owner manual that comes with your filter should tell you what it covers.
Different filters filter different things. You should read the package it comes in to see what the filter takes out.
Any filter system will have a lower limit on the size of particles that it can filter, so the added step of boiling will always be advisable to make sure that you get viruses, smaller bacteria and cysts/spores that your filter may not handle. A VERY small quantity of bleach (like 1 small drop per gallon) or exposure to UV light can also help control some of those water-borne hazards, but boiling is still advisable.
You also have to weigh your immediate need for water - if you will die of thirst before you can get the chance to boil water, go with what your filter will give you and take your chances.
As long as you don't venture to third world countries, a quality filter will take care of any biological nasties in the water. They will not, however, take care of industrial pollutants, nor most viruses. The good news is that these things rarely occur in the places where sportsmen spend their time. Here is a FAQ that might help:
I would say boil the water..like they say "better safe than sorry"...but I would also reccomend to read the package to see what the filter covers.
you should boil the water thats get all the bacteria out of your water.
boil anyway just to make sure, better safe then having diarreai.
You can trust the bottle when you need to but when I have the opportunity I boil the water just in case.
I'd boil it regarless of what the filter said it could do.
To play it safe when you don't have the opportunity to boil, carry a bottle of iodine tablets which purify the water. It adds a different taste to it(which I wouldn't classify as good or bad) but the water is safe.
boil the water when u can but it wont hurt u to drink straight out of a clean mountain stream
In this day there is no such as a clean mountain stream. Free ranging cattle on summer range, beavers in their ponds and lodges, etc. Wild water needs to be purified. If you think you are dehydrated now wait until the diahrea does a number on you. Either boil it, treat it for the full three hours to kill the hard shell cysts, or filter it. There are micro filters and there are purifiers, A purifier with a filter of .004 microns will filter out everything viruses and all.
not to push my luck but ive used the katadyne pro or whatever the cheapest one is on numerous 4 day camping trips and without boiling ive had nothing but the freshest clearest tasteless water i think ever had. always use your best discresion
It depends on the filter type. You should read the instructions and if it doesn't say anything about that then boil it to be safe
most can filter everything for the most part so you should be good.
Agreed with wyates and + 1 for you sir!!!
Be safer to boil the water aswell. The bottle would do a good job though
I would boil it just to be safe
i would boil just in case. it can't hurt
another purification process if you have none of the above is, believe it or not, whisky. It can make water completely safe after a given amount of time of course. See the survival issue of the backpacker for more details it's awesome.
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