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 Post subject: Water Treatment
PostPosted: July 16th, 2015, 5:09 pm 
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Joined: October 31st, 2012, 12:37 pm
Posts: 33
I've been reconsidering my water treatment options. Many public health boards give instructions for using ordinary bleach for treating water. in emergencies. I have used it in a pinch in the past and had no problems with it. Does anyone know of any reason to not to use bleach rather than the commercial treatments? Bleach is basically free in the quantities required and pretty simple to use. I haven't noticed the taste to be any worse than the chlorine-based tablets available now. I'm hesitant to play armchair chemist with strong chemicals but it isn't obvious to me if bleach is any more dangerous to use than the commercial products.


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 Post subject: Re: Water Treatment
PostPosted: July 16th, 2015, 5:33 pm 
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Joined: December 19th, 2006, 8:47 pm
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Location: Rattlesnake Pond ME
What commercial products? Bleach calls for 1/4 cup per gallon.. Not liking that!
And it takes 45 min to kill giardia cysts as they are resistant to chlorine.

http://www.cdc.gov/healthywater/swimmin ... table.html

I prefer water filters.


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 Post subject: Re: Water Treatment
PostPosted: July 16th, 2015, 6:42 pm 
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Joined: August 11th, 2002, 7:00 pm
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Location: Sunny Wasaga Beach
I find there's very little taste with Pristine.

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 Post subject: Re: Water Treatment
PostPosted: July 16th, 2015, 7:21 pm 
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I've used PolarPure for more than 20 years in the Adirondacks.
http://www.polarequipment.com/
It is pure molecular elemental iodine, and does have a nasty taste, but you get used to it. A small bottle will last a lifetime (2000 gallons). It has no expiration date. Haven't have any problems with it, and have not contracted any ill effects from drinking treated water in the backcountry in all this time.

On the Yukon River, with its incredibly thick silty nature, I have used Pur Reliance water chemistry to eliminate the silt and to purify for drinking.
https://relianceproducts.com/pur_water.html


Last edited by nessmuk on July 16th, 2015, 10:27 pm, edited 1 time in total.

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 Post subject: Re: Water Treatment
PostPosted: July 16th, 2015, 8:29 pm 
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Joined: November 2nd, 2008, 11:15 pm
Posts: 205
Location: Collingwood Ontario
You have to be careful with the amount of bleach. I think it is 1/4 teaspoon per gallon to purify drinking water (not a 1/4 cup). Too much can be poisonous.

I use the Micropur tablets. A bit expensive at 70 cents a litre but easy to use and no after taste.

Treatment time depends on the clarity of the water and its temperature. For the Micropure (basically Chlorine), clear water at 20C is 30 minutes, cloudy/silty water is 4 hours at 5C.

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 Post subject: Re: Water Treatment
PostPosted: July 16th, 2015, 10:01 pm 
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Joined: July 9th, 2001, 7:00 pm
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Location: Cambridge, Ontario
When you can get an easy to use long life filter for less than 100 bucks why would anyone mess around with bleach?


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 Post subject: Re: Water Treatment
PostPosted: July 16th, 2015, 11:40 pm 
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Joined: October 9th, 2009, 9:52 am
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Location: Toronto Beach(es)
x2 on the Pristine especially for large quantities of water on good sized lakes. I also travel with a Sawyer SP 128 Mini for use on sketchier waters. Good insurance for under $30.

http://www.amazon.ca/gp/product/B00FA2R ... YIK6Y9EEQB


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 Post subject: Re: Water Treatment
PostPosted: July 17th, 2015, 6:29 am 
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Joined: December 19th, 2006, 8:47 pm
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Location: Rattlesnake Pond ME
http://www.cdc.gov/healthywater/emergen ... sonal.html

oops 40 drops per gallon


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 Post subject: Re: Water Treatment
PostPosted: July 17th, 2015, 9:00 am 
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Joined: October 16th, 2008, 9:20 am
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Location: Oshawa
Lately I've been just boiling my water. I fill up two nalgeine bottles at night before bed and then by morning they are cool. In the morning I'll top them up for the day with the water I boil for coffee.

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 Post subject: Re: Water Treatment
PostPosted: July 17th, 2015, 11:43 am 
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Joined: October 28th, 2011, 8:51 pm
Posts: 106
I use Aquatabs. 1 tablet for 1 litre. At $12.99 for 50 tablets, that's $.26/litre. Even cheaper $10 (like $.10/litre) at MEC. For clear water. Takes 30 minutes or longer if colder. No big deal. My two water bottles which I alternate are just convenience store size 740 ml, so I'm getting a stronger dose per bottle. No taste; occasionally a very very slight chlorine taste.
For dirtier water I sometimes carry a Sawyer Squeeze 1micron filter, but not often.

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 Post subject: Re: Water Treatment
PostPosted: July 17th, 2015, 1:36 pm 
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Joined: February 7th, 2004, 12:37 pm
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Location: Guelph, ON
I use Bleach to treat my water and then filter it, if I am planning to drink it cold. For cooking with or using it to make coffee, I just use the bleached water.

The dosage rate is between 0.1 to 0.2ml of 5% Na0Cl/litre of water, depending on the temperature of the water or its turbidity.

But, the concentration of Bleach has been increasing in strength over the past few years, so you may encounter Bleach disinfectant products with up ~ 8% Na0Cl in them. In that case you need to reduce the dosage accordingly.

There is a problem with putting too much Bleach in your water. It will kill off all of the beneficial organisms in your gut and you will be sick for a few days, until you get re-populated.

I use a calibrated syringe with a 0 to 5ml range to measure and deliver the correct amount of Bleach. I then stir the water vigorously to make sure it is well mixed.


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 Post subject: Re: Water Treatment
PostPosted: July 17th, 2015, 5:06 pm 
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Joined: August 11th, 2002, 7:00 pm
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Location: Sunny Wasaga Beach
Here's what we normally use:
http://shop.katadyn.com/product/8019201 ... guage_id=1

With a little planning that's pretty well all we need but we take Pristine or a water pump as a back-up. One of the first things I do when we get in camp is to fill hang the filter bag. By the time we are ready for supper we have enough water to do us. Left overnight we have lots for breakfast and to take with us. We don't do much portaging these days so we are not lugging much water over the ports.

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 Post subject: Re: Water Treatment
PostPosted: July 17th, 2015, 9:53 pm 
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Joined: May 6th, 2005, 12:52 am
Posts: 93
Location: Ottawa
Interesting discussion.
I think that everyone I know uses a filter, with one or another sort of tablets as a backup in case the filters (yes, usually plural, if 4 or more people on the trip) have a problem.

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 Post subject: Re: Water Treatment
PostPosted: January 11th, 2016, 12:48 pm 
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Joined: January 5th, 2016, 11:30 pm
Posts: 38
I've been thinking of this too. I always used liquid iodine or just bleach and would treat a gallon jug at a time. No problems. We weren't too specific with the bleach, maybe a capful per gallon? I'm finding people frowning on these chemicals now.
Last year went with a friend and used a msr pump filter, and even just for two people it seemed a lot of time/ energy filling Nalgenes so I'm hesitant to buy one myself.

Anyone seen the new msr guardian filter? It looks amazing on paper. 10 yr cartridge. Twice as fast as the old pump. And takes out viruses as well. Not a cheap buy though.
Ryan


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