Austin Texas tap water: chlorine (or chloramine?) - Home Brew Forums
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Austin Texas tap water: chlorine (or chloramine?)

Reply
 
Thread Tools
Old 12-30-2012, 11:25 PM   #1
johnnyjumpup
Recipes 
 
Dec 2012
Posts: 60
Liked 2 Times on 2 Posts



The tap water here in Austin contains between 2.23 and 2.09 mg/L of "Residual Chlorine" according to the water utility. Is this considered high? Is this something that I can count on dissipating in the boil or should I treat it?

To anyone from Austin: do you know if they use chlorine of chloramine in the water here?

Cheers!



 
Reply With Quote
Old 12-31-2012, 02:56 AM   #2
mabrungard
HBT_LIFETIMESUPPORTER.png
 
mabrungard's Avatar
Recipes 
 
Feb 2011
Carmel, IN
Posts: 4,085
Liked 584 Times on 451 Posts


Its typical. A water utility is required by law to have that disinfectant residual in their distribution system.


__________________
Martin B
Carmel, IN
BJCP National
Foam Blowers of Indiana (FBI)

Brewing Water Information at:
https://sites.google.com/site/brunwater/

Like Bru'n Water on Facebook for occasional discussions on brewing water and Bru'n Water
https://www.facebook.com/pages/Brun-...?ref=bookmarks

johnnyjumpup Likes This 
Reply With Quote
Old 12-31-2012, 03:15 AM   #3
ThatGeekGuy
HBT_SUPPORTER.png
 
ThatGeekGuy's Avatar
Recipes 
 
Aug 2012
Sugar Land, TX
Posts: 450
Liked 61 Times on 43 Posts


From the austintexas.gov website:

Q. Is chlorine a safe disinfectant for drinking water?

A. Austin uses chloramine to disinfect our drinking water. Chloramine is used in municipal water treatment and is the most effective way to ensure that water stays disinfected as it travels through water delivery systems.

Use a Campden tablet in your brewing and top-off water and you should be fine.
__________________
Primary 1: Lonely
Primary 2: Lonely
Secondary 1: Orange Mead (Made Jan. 2013)
On Tap #1: Stormy Monday IIPA
On Tap #2: Mild Thing English Brown
On Deck: Thinking....

johnnyjumpup Likes This 
Reply With Quote
Old 12-31-2012, 04:02 PM   #4
johnnyjumpup
Recipes 
 
Dec 2012
Posts: 60
Liked 2 Times on 2 Posts


Thanks guys!

 
Reply With Quote
Old 02-08-2013, 11:04 PM   #5
bobcostas
Recipes 
 
May 2011
Austin, Texas
Posts: 14

Hey!


I live in Austin and I am right outside the COA utility zone. My water company uses chloramine. It RUINS beer. 4 batches I had to throw out. I Putin a cheap(ish) water filter from home depot and it cleared that problem right up.
__________________
"The oxen may be slow, but the Earth is patient"

Primary - Session British Bitters
Primary - Falconer's Flight IPA
Secondary - (bone dry)
On Tap - (patiently waiting)

 
Reply With Quote
Old 02-09-2013, 05:14 AM   #6
cubanerick
Recipes 
 
Dec 2012
Jacksonville, Florida
Posts: 1


I live in Austin and just recently started brewing, but I have bought 2.5 gallon jugs from heb everytime I have brewed. I know our water here just doesn't taste that great and I rather be safe than sorry. I buy 3 of the 2.5 gallon spring water jugs and it cost about 7 bucks.

 
Reply With Quote
Old 02-09-2013, 12:47 PM   #7
mabrungard
HBT_LIFETIMESUPPORTER.png
 
mabrungard's Avatar
Recipes 
 
Feb 2011
Carmel, IN
Posts: 4,085
Liked 584 Times on 451 Posts


If chloramines are the disinfectant in the water system, you are much better off using campden tablets to remove the chloramine than activated carbon filtration. The flow rate has to be SUPER low to achieve adequate chloramine removal. When properly dosed, campden tablets do not appreciably alter the ionic content of the brewing water and do not add appreciable sulfite to the water (its all reacted).
__________________
Martin B
Carmel, IN
BJCP National
Foam Blowers of Indiana (FBI)

Brewing Water Information at:
https://sites.google.com/site/brunwater/

Like Bru'n Water on Facebook for occasional discussions on brewing water and Bru'n Water
https://www.facebook.com/pages/Brun-...?ref=bookmarks

 
Reply With Quote
Old 02-09-2013, 03:16 PM   #8
Wynne-R
Recipes 
 
Aug 2009
Texas
Posts: 975
Liked 124 Times on 79 Posts


Hi Martin. It seems that activated carbon would, at the least, reduce the need for Campden. Would an aquarium chlorine tester be sufficiently sensitive to determine the appropriate level?

I just found out my water company uses 3-4 ppm chloramine. I have been using a 10 inch 1 micron filter, no problem. Most brewers I know are using 5 micron filters.

Either way it passes AJís smell test. http://www.homebrewtalk.com/f128/cam...-water-361073/

As my old boss would say ď I donít understand all I know about this.Ē

 
Reply With Quote
Old 02-09-2013, 09:14 PM   #9
patthebrewer
Recipes 
 
Sep 2012
, allenwood, nj
Posts: 688
Liked 56 Times on 49 Posts


I also use campden, remember only a little is needed. I use 1/2 tab for 10-15 gallons batches.
__________________
Manasquan River Brewing LLC

 
Reply With Quote
Old 02-09-2013, 10:01 PM   #10
mabrungard
HBT_LIFETIMESUPPORTER.png
 
mabrungard's Avatar
Recipes 
 
Feb 2011
Carmel, IN
Posts: 4,085
Liked 584 Times on 451 Posts


Activated carbon does reduce chloramine concentration, but it is very sensitive to the time its in contact with the carbon. That is the reason for the very slow flow rate. To achieve near complete removal, the residence time in contact with the carbon needs to be about 8 minutes. For the little 10" filters, that means a flow rate of 1/10th gallon/min or less. For most people, that flow rate is ridiculously slow. If you are willing to wait, this treatment is fine. For most people, they have better things to do.

A filter with a micron rating is a particulate filter and it probably doesn't have an activated carbon component. Filtering with either 1 or 5 micron filters is useless for brewing purposes.

Unfortunately, AJ's smell test is not reliable when dealing with chloramine. Chloramine has low volatility and most people have difficulty smelling it. That makes the presence of small concentrations even harder to detect. Since it only takes tenths of a ppm of chlorine or chloramine to produce chlorophenols in perceptable concentrations in beer, you must remove all or virtually all of these disinfectants from water prior to brewing.


__________________
Martin B
Carmel, IN
BJCP National
Foam Blowers of Indiana (FBI)

Brewing Water Information at:
https://sites.google.com/site/brunwater/

Like Bru'n Water on Facebook for occasional discussions on brewing water and Bru'n Water
https://www.facebook.com/pages/Brun-...?ref=bookmarks

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Austin, Texas tap water profile jcole Beginners Beer Brewing Forum 27 01-19-2013 05:03 AM
chloramine in water (water quality report attached) Doctor_Wily Brew Science 18 11-26-2012 09:28 PM
Erie County, NY- Chlorine or Chloramine buffaloipa Brew Science 2 01-19-2012 09:09 PM
The effects of chlorine and chloramine? wolfgre Beginners Beer Brewing Forum 6 08-06-2010 06:24 PM
chlorine vs. chloramine robnog General Techniques 6 12-31-2006 06:33 AM


Forum Jump