Topics Topics Help/Instructions Help Edit Profile Profile Member List Register  
Search Last 1 | 3 | 7 Days Search Search Tree View Tree View  

Visit The Brewery's sponsor!
Brews & Views Bulletin Board Service * Brews and Views Archive 2011 * Archive through September 14, 2011 * Chloramine & Chlorine < Previous Next >

  Thread Last Poster Posts Pages Last Post
  ClosedClosed: New threads not accepted on this page        

Author Message
 

Ric Heinz
Advanced Member
Username: Rheinz

Post Number: 518
Registered: 01-2004
Posted From: 34.254.119.221
Posted on Thursday, August 04, 2011 - 02:52 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Hi Everyone -

Just installed a 75 GPD RO unit for my brewing water. To check the performance of the unit, I sent off a sample to a water lab but have not yet received back the analysis.

I assume that this unit will remove the chloramines that our utility district is using to treat the water.

Is this a correct assumption?

Ric
 

Bill Pierce
Moderator
Username: Billpierce

Post Number: 13101
Registered: 01-2002
Posted From: 24.150.49.181
Posted on Thursday, August 04, 2011 - 04:55 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Yes, an RO filter will remove chloramines, as well as about 90 percent of dissolved ions.

(Message edited by BillPierce on August 04, 2011)
 

Josh Vogel
Junior Member
Username: Loopie_beer

Post Number: 69
Registered: 02-2011
Posted From: 65.60.214.75
Posted on Friday, August 05, 2011 - 12:12 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

As Bill stated, the RO will remove nearly everything in your water. So, make sure you thank Martin on his Bru'n Water as that is hands down the best water calc I have used.

I brew only with RO and LOVE it!
 

Tex Brewer
Advanced Member
Username: Texbrewer

Post Number: 687
Registered: 03-2004
Posted From: 70.244.200.28
Posted on Friday, August 05, 2011 - 03:05 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Another easy way to remove chlorine and chloramines is to add a pinch of potassium metabisulfite to your water. Literally a pinch is all it takes for 5 gal. The reaction is very fast.
 

Nephalist
Advanced Member
Username: Nephi

Post Number: 512
Registered: 12-2005
Posted From: 76.94.27.148
Posted on Friday, August 05, 2011 - 03:51 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

A quick look at Ric's profile pic shows that a pinch of campden tabs just won't do it ("not that there's anything wrong with it"; that's what I do). That's a nice ordered set of C-clamps you got there (winking emoticon).
 

mikel
Intermediate Member
Username: Mikel

Post Number: 364
Registered: 02-2001
Posted From: 166.181.2.42
Posted on Friday, August 05, 2011 - 05:01 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Also, keep in mind that an RO system needs to have a carbon filter pre membrane to effectively remove chlorine and chloramines. Both of these can destroy the ro membrane if not removed first. Some RO systems on may not have a carbon prefilter so be sure that yours does.
 

mikel
Intermediate Member
Username: Mikel

Post Number: 365
Registered: 02-2001
Posted From: 166.181.2.33
Posted on Friday, August 05, 2011 - 05:03 am:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Also, a cheap TDS meter is a good tool to have if you have an RO system. You will be able to easily track the performance and know when you need to change the membranes. My TDS meter cost $20.
 

Tex Brewer
Advanced Member
Username: Texbrewer

Post Number: 688
Registered: 03-2004
Posted From: 216.203.59.252
Posted on Friday, August 05, 2011 - 06:46 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Nephi, I see what you mean. Ric's rig does not smack of pinch-adding techniques. He wants full pimp.

Note that John Palmer says 1 Campden tab (0.44 g) will remove Cl from 20 gal water. I'm not sure if 0.11 g (would be ~1/40 tsp.) is a pinch, but it's good enough for me. I admit it, I'm a cut first, measure later kind of guy.
 

Ric Heinz
Advanced Member
Username: Rheinz

Post Number: 519
Registered: 01-2004
Posted From: 34.254.247.221
Posted on Monday, August 08, 2011 - 01:33 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Terrific. Thanks for all of the comments.

The unit has 3 pre-filters and one post-filter. I'm pretty sure the first if not the second pass filter is activated carbon. I know it had to be flushed quite a while to get all the carbon residue out. I'm looking forward to brewing with it.

My brew day usually requires 12 to 15 gallons of water. Since the unit only stores around 3 gallons, I'm planning to use 5 gallon plastic water bottles to collect and store RO water in. Is that how you guys are doing it?

Thanks for the comments on the brew system. The pump burned up shortly after the last brew session. Since the next revision was long overdue, time to move on to the Rev. 99 system. A RubberMaid cart and two circulating pumps... Wiring in progress... Pictures posted when it's complete.
 

mikel
Intermediate Member
Username: Mikel

Post Number: 367
Registered: 02-2001
Posted From: 166.181.2.48
Posted on Monday, August 08, 2011 - 03:16 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Ric,

If you run the outlet of the RO system into a non-pressurized container, like the 5 gallon plastic bottle, instead of the 3 gallon pressurized tank the unit will run much more efficiently because of the lack of back pressure on the membranes. You will waste less water and be able to get more GPD out of the unit.