MoapaPk wrote:
Do you know how most municipalities treat drinking water and waste water? Read Day Hiker's comments above.
Moapa, it was a reply directly to your question above - I just saw "drinking" before waste and went with it...
by welle » Fri Nov 05, 2010 8:13 pm
MoapaPk wrote:
Do you know how most municipalities treat drinking water and waste water? Read Day Hiker's comments above.
by Big Benn » Sun Nov 07, 2010 9:43 pm
by Carbo » Mon Nov 08, 2010 6:24 pm
by lcarreau » Tue Nov 09, 2010 12:05 am
by dskoon » Wed Nov 10, 2010 7:42 pm
Carbo wrote:I throw the nalgene in the dishwasher. If it can sterilize a baby bottle it can keep a nalgene clean enough for me too
by Day Hiker » Wed Nov 10, 2010 9:40 pm
dskoon wrote:Carbo wrote:I throw the nalgene in the dishwasher. If it can sterilize a baby bottle it can keep a nalgene clean enough for me too
Careful about that(unless you already know), as the older bpa nalgenes were/are heat sensitive, so you don't want to stick them too close to the heater element in the dishwasher, or leaching in the plastic, may occur. Hence the fears that led to them doing away with bpa bottles. . .
In the study, new and old bottles filled with room-temperature water released the same amount of BPA. When scientists exposed new and used bottles to boiling water, however, they released BPA up to 55 times more rapidly than before heating.
by dskoon » Wed Nov 10, 2010 10:32 pm
Day Hiker wrote:dskoon wrote:Carbo wrote:I throw the nalgene in the dishwasher. If it can sterilize a baby bottle it can keep a nalgene clean enough for me too
Careful about that(unless you already know), as the older bpa nalgenes were/are heat sensitive, so you don't want to stick them too close to the heater element in the dishwasher, or leaching in the plastic, may occur. Hence the fears that led to them doing away with bpa bottles. . .
The leaching occurs while the plastic is hot. Once it cools, the plastic is as safe as it was before heating. So the rule is don't use the container for any hot beverages, i.e., don't let the plastic get hot while your beverage is in it.In the study, new and old bottles filled with room-temperature water released the same amount of BPA. When scientists exposed new and used bottles to boiling water, however, they released BPA up to 55 times more rapidly than before heating.
http://www.usatoday.com/news/health/2008-01-29-plastic-chemical_N.htm
by MoapaPk » Thu Nov 11, 2010 12:01 am
by Bruno » Thu Nov 11, 2010 12:44 pm
dskoon wrote:The other thing I always heard was that the sun, uv rays, broke down the plastic in the bottle, making it unsafe to drink from over time. Again, maybe that is only when the sun has been heating the bottle while the bottle is full of liquid.
by rice » Thu Nov 11, 2010 9:02 pm
by MoapaPk » Thu Nov 11, 2010 9:19 pm
Bruno_Tibet wrote:http://en.wikipedia.org/wiki/Solar_water_disinfection
Edit: PS. Ah, and no need to clean them either...
by Bruno » Fri Nov 12, 2010 5:40 am
MoapaPk wrote:Bruno_Tibet wrote:http://en.wikipedia.org/wiki/Solar_water_disinfection
Edit: PS. Ah, and no need to clean them either...
Looks good, but there is a little caveat:
"In theory, the method could be used in disaster relief or refugee camps. However, supplying bottles may be more difficult than providing equivalent disinfecting tablets containing chlorine, bromine, or iodine. Additionally, in some circumstances, it may be difficult to guarantee that the water will be left in the sun for the necessary time."
There are times when I could use this method -- especially if I'm leaving a high camp for the day. I could just leave one of my PETE (US recycle #1) out in the sun till I return (and find it chewed up by a marmot!).
by pitney » Wed Nov 17, 2010 9:00 pm
by MoapaPk » Wed Nov 17, 2010 9:17 pm
pitney wrote:But are those thin plastic bottles durable? Last thing I want is one to split or crack during a trip...and traveling puts them to abuse. And to hold back the jerks, by durable I mean a season, say 4 months. Not years.
pitney
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