How much Alum - Page 2 - Mountain Buzz
 



Reply
 
Thread Tools Display Modes
 
Old 10-04-2016   #11
 
Electric-Mayhem's Avatar
 
Lakewood, Colorado
Paddling Since: 1993
Join Date: Jan 2004
Posts: 504
Hmmm.... when we used it on a mid-spring Deso trip I would sprinkle about a teaspoon into the bucket and swirl it around and 15 minutes later it was pretty much clear. It still had some color to it, but no sediment on the top 3/4 of the bucket.

Electric-Mayhem is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-04-2016   #12
 
Join Date: Aug 2006
Posts: 206
Quote:
Originally Posted by Oc1paddler View Post
We have done it several different ways but have found this way to work much better than sprinkling it straight in to the bucket and uses less Alum.
Mix aprox. a teaspoon of Alum in a cup of water.
Pour the solution in to the bucket of water you are trying to settle.
Wait and hour or so and gentle scoop or pour off your clear water.
This works for a 5 gallon bucket of water. Before using this method we used way more Alum trying to get the water to settle. Not sure why mixing it in a small amount of water works better than stirring it straight in to the bucket but it does.
I have also found that method to be very effective and you can just make up a batch in a small water bottle shaking heavily and add a few small amount to each bucket let settle for about 30 minutes and just keep the remainder in the bottle for the next round. I forgot to mention before but has since brought up is the need to decant your good water off the top prior to filtering. Depending on how much sediment you have and how carefully your can pour off the 'clean' water determines what you get but normally you lose less than a quarter of the water.
mkashzg is offline   Reply With Quote
Old 10-04-2016   #13
 
Join Date: Aug 2006
Posts: 206
Quote:
Originally Posted by Electric-Mayhem View Post
Hmmm.... when we used it on a mid-spring Deso trip I would sprinkle about a teaspoon into the bucket and swirl it around and 15 minutes later it was pretty much clear. It still had some color to it, but no sediment on the top 3/4 of the bucket.
You can get by with a lot less than that even on the Grand when it is really muddy. As Oc1 just mentioned mixing with water also reduces the amount it takes it seems to do the job. It may still have a little color but that's what you're filter is for.
mkashzg is offline   Reply With Quote
Old 10-05-2016   #14
 
grumpyrafter's Avatar
 
naturita, Colorado
Paddling Since: 1997
Join Date: Mar 2010
Posts: 19
This is what they say on the Big Ditch...

Water Purification
All water consumed or used for cooking should be purified. Research on the Colorado River and its tributaries indicate that increased sediment from flooding or other causes may pose a high risk to river users. The following water purification steps should be followed:
A.
Use the main course of the Colorado River to collect water unless the river is quite cloudy from sediment.
B.
Use side streams as a water source when the main river is laden with sediment and the side stream is running clear. Avoid the following tributaries because of inconsistent water quality: Paria River, Little Colorado River, Bright Angel Creek,
Garden Creek, Hermit Creek, Elves Chasm, Tapeats Creek, Deer Creek, Havasu Creek, and Diamond Creek.
C.
Cloudy, sediment-laden water must be cleared before disinfecting. Settle overnight or use flocculating procedures (1 teaspoon alum per 5 gallons of water for drinking water). Decant the clear water into another container.
On the basis of a recent literature review, the Center for Disease Control and the Environmental Protection Agency recommended that water be rendered microbiologically safe for drinking by bringing it to a rolling boil for 1 minute; this will inactivate all major waterborne bacterial pathogens and waterborne protozoa.
Secondly, portable filters having a nominal pore size of 0.2 microns or less may also be used to remove bacteria and protozoan cysts. To assure removal of viruses, a disinfectant must be used in addition to the filter; current recommendations are 2 drops of chlorine per gallon after filtering. Settled water will extend filter life. Decant the clarified portion of settled water, filter, and disinfect with a product labeled for drinking water. Use the disinfectant according to the instructions on the label.
__________________
"Suppose you were an idiot, and suppose you were a member of congress; but I repeat myself." - Mark Twain
grumpyrafter is offline   Reply With Quote
Old 10-05-2016   #15
 
Join Date: Feb 2005
Posts: 889
Hi,

If you have the time and two containers, let the silted water settle in one of them for even as little as a half hour. Then decant the top, partially clarified, water off into the second container. Adding the alum now will produce improved results more quickly, as there will be far less sediment for the alum to adhere to.

And ditto on the supersaturated solution method mentioned above. Very efficient and convenient.

FWIW.

Rich Phillips
richp is offline   Reply With Quote
Old 10-05-2016   #16
 
Conejos Canyon & Houston, CO & TX
Paddling Since: 1979
Join Date: May 2004
Posts: 84
P&G PUR packets

I have tried these, which are a little pricey and hard to find in small quantities, but are very convenient and seem to work well. certainly easier than alum + filter in my experience

0:45 to 1:45 is where the magic happens in this video
crispy is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Topic Thread Starter Forum Replies Last Post
Trailer Hitch Bike Rack - how much sway is too much? Andy H. Kayaking | Gear Talk 6 09-02-2012 01:45 PM
Bending ski brakes, how much is too much? Chaser Winter Buzz 6 12-26-2009 07:55 PM
A much, MUCH faster way to see these canyons rg5hole Whitewater Kayaking 53 10-13-2009 12:04 AM
How much air is too much air? Scottsfire Kayaking | Gear Talk 8 07-27-2009 02:46 PM
Paddling with pain: Advil, how much is too much? badkins Whitewater Kayaking 7 04-19-2004 04:55 PM

» Classified Ads
Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:11 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.