Sight glass overflow - Home Brew Forums
Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns & Hot Liquor Tanks > Sight glass overflow

Reply
 
Thread Tools
Old 08-10-2012, 06:59 PM   #1
nukebrewer
Brew the brew!
HBT_LIFETIMESUPPORTER.png
 
nukebrewer's Avatar
Recipes 
 
Oct 2008
Groton, CT
Posts: 5,670
Liked 2865 Times on 1733 Posts



Hi,
I just heated up the strike water for my brew and am currently letting the mash tun pre-heat, so this isn't super urgent, but I need to know how to prevent my sight glass from overflowing as the water heats (this is my first time using it). I remember someone saying something in a previous thread of mine about installing a piece of flashing, but how would one do that and can it be done without removing the sight glass? Thanks a million.

EDIT: Amplifying information: This wasn't a huge problem while heating the strike water because I noticed most of the time it would approach the top of the sight glass and then go back down, I'm assuming due to some kind of pressure change and when it did overflow, it was just a few drops. But I can see this becoming a problem during the boil.


__________________
The only thing more asinine than stupid rules is the enforcement of rules simply because they are the rules.

Inhopsicated: A Beer Blog

Inhopsicated on Twitter

 
Reply With Quote
Old 08-10-2012, 07:03 PM   #2
tre9er
Recipes 
 
Jan 2012
Lincoln, NE
Posts: 4,369
Liked 242 Times on 197 Posts


I don't understand how it's overflowing...? It should have the same level of water as your kettle does. Flashing is usually for keeping open flame heat away from the sight glass so as not to melt it.


__________________
_________________________________
Skal!
Den Faaborg Bryggeri

Quote:
Originally Posted by davekippen View Post
Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!

 
Reply With Quote
Old 08-10-2012, 07:11 PM   #3
SixFoFalcon
Recipes 
 
Jul 2007
Flourtown, Pennsylvania
Posts: 500
Liked 7 Times on 6 Posts


I think he's saying the elbow (or tee, as the case may be) at the base of the sight glass catches enough heat from the burner that it starts boiling the liquid inside and percolates it up the sight glass. Should be something that any small amount of insulation--even a crumpled up sheet of aluminum foil--would prevent.
__________________
Primary: Nothing
Secondary: ESB
Kegged:Apfelwein
On tap:Witbier, American Stout, Imperial Stout, Root Beer

Bottled:"Massacreation" Chinook Barleywine, Belgian Golden Strong Ale, English IPA, Cabernet Sauvignon
Next: US IPA

 
Reply With Quote
Old 08-10-2012, 07:13 PM   #4
nukebrewer
Brew the brew!
HBT_LIFETIMESUPPORTER.png
 
nukebrewer's Avatar
Recipes 
 
Oct 2008
Groton, CT
Posts: 5,670
Liked 2865 Times on 1733 Posts


That's what I assumed would happen, but as it was heating I could see air bubbles in the sight glass and the water level was all over the place. I just don't want to get to the boil and have my precious wort going all over the place out of my sight glass.
__________________
The only thing more asinine than stupid rules is the enforcement of rules simply because they are the rules.

Inhopsicated: A Beer Blog

Inhopsicated on Twitter

 
Reply With Quote
Old 08-10-2012, 07:15 PM   #5
nukebrewer
Brew the brew!
HBT_LIFETIMESUPPORTER.png
 
nukebrewer's Avatar
Recipes 
 
Oct 2008
Groton, CT
Posts: 5,670
Liked 2865 Times on 1733 Posts


Quote:
Originally Posted by SixFoFalcon View Post
I think he's saying the elbow (or tee, as the case may be) at the base of the sight glass catches enough heat from the burner that it starts boiling the liquid inside and percolates it up the sight glass. Should be something that any small amount of insulation--even a crumpled up sheet of aluminum foil--would prevent.
Thanks. I'll give that a shot and let you know how it works out.
__________________
The only thing more asinine than stupid rules is the enforcement of rules simply because they are the rules.

Inhopsicated: A Beer Blog

Inhopsicated on Twitter

 
Reply With Quote
Old 08-10-2012, 07:34 PM   #6
Tarks
Recipes 
 
Apr 2012
Winnipeg, Manitoba
Posts: 268
Liked 45 Times on 35 Posts


I had this same problem. I now place a small (6" x 6") piece of flashing beneath the keggle to protect the valve, site glass and thermometer. For $1.50 at Home Depot it works like a charm.

 
Reply With Quote
Old 08-11-2012, 04:38 PM   #7
limulus
HBT_SUPPORTER.png
 
limulus's Avatar
Recipes 
 
Oct 2009
ATL Burbs, Georgia
Posts: 1,453
Liked 89 Times on 73 Posts


I've had the same problem with mine. I have a 10gal aluminum kettle and mine always boils inside the sight glass. I have new 15gal 10 gal stainless kettles on the way for a new project I'm dreaming up in my cluttered head. I'm seriously considering doing away with the sight glass. If brew again on the old kettle, I'll try to shield the elbow/valve assembly with some flashing.
__________________
Brewin' on a Medium Brewha BIAC system with glycol


"Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut."
-Ernest Hemingway

 
Reply With Quote
Old 08-12-2012, 03:22 PM   #8
Conesus_Kid
Recipes 
 
Nov 2009
Conesus, NY
Posts: 53

Mine overflows when I'm brewing 13 gallons in a 60 qt. aluminum stockpot. I just stick one of those white caps from an orange carboy cap over the top of the sight glass. It never gets too hot to touch bare-handed and I remove it towards the end of the boil so I can keep an eye on kettle volume. It fits tightly enough that I don't have to worry about it popping off.

No more overflowing sight glass.

 
Reply With Quote
Old 08-12-2012, 05:15 PM   #9
chuckjaxfl
Recipes 
 
Feb 2010
Jacksonville, FL
Posts: 327
Liked 22 Times on 14 Posts


So this is pretty much a gas-system-only problem, I'm guessing?

 
Reply With Quote
Old 08-12-2012, 05:20 PM   #10
OneHoppyGuy
Recipes 
 
Nov 2009
Concord, CA
Posts: 1,666
Liked 44 Times on 36 Posts


Taller sight gauge



 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sight Glass DIY Jester4176 Kettles, Mash Tuns & Hot Liquor Tanks 14 04-30-2011 02:25 PM
Sight Glass ?s bkloos Kettles, Mash Tuns & Hot Liquor Tanks 21 02-01-2011 05:35 AM
sight glass help stee41 Kettles, Mash Tuns & Hot Liquor Tanks 1 04-30-2010 04:59 PM
DIY sight glass LKHA Kettles, Mash Tuns & Hot Liquor Tanks 4 01-02-2010 03:01 AM
DIY Sight Glass Help Mitch529 Kettles, Mash Tuns & Hot Liquor Tanks 4 10-08-2008 01:36 PM


Forum Jump