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Old 02-04-2013, 06:18 PM   #21
ddahl84
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Mar 2011
Minneapolis, Minnesota
Posts: 86
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Quote:
Originally Posted by Carlscan26
Did you lose any heat while recirculating the mash?
Ill have to get back to you on that one. I have taken several readings at the end of the 60min mash and lose 1-2 degrees, then I start a mash recirc for around 15min and don't really care about the temp since the mash is done at that point. But next brew day ill try to remember to check it out.

Update: Brewing right now and checked the temp after 50 min mash and 10 min recirc. Temp dropped by 5 degrees. One thing to mention, when I start the full recirc I put the pid temp at whatever the mash should be and during the 45-60 recirc it holds that temp.

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Old 02-05-2013, 07:34 PM   #22
CalypsoCowboy
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Nov 2010
Nampa, ID
Posts: 50

Is there a reason you recirculate the mash vs. Just letting it sit in the cooler for the 60 minutes?

 
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Old 02-05-2013, 09:27 PM   #23
ddahl84
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Mar 2011
Minneapolis, Minnesota
Posts: 86
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Quote:
Originally Posted by CalypsoCowboy
Is there a reason you recirculate the mash vs. Just letting it sit in the cooler for the 60 minutes?
I do let the mash sit for 45-60min then recirc/vorlauf so when I start draining it into the boil kettle it's clear wort.

 
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Old 02-06-2013, 04:35 AM   #24
CalypsoCowboy
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Nov 2010
Nampa, ID
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Okay, that make sense. Thanks

 
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Old 12-20-2013, 07:22 PM   #25
steveoatley
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Aug 2006
Berkley, Michigan
Posts: 512
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Hey ddahl84

I really like your build, looking to build something very similar myself
I was wondering if you had any updates ? Improvements ?
Anything you would change ?

And, do you think you could do the same as a one tier with two pumps ?
Oh, and how is that 12v pump holding up ?

Thanks
Steve

 
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Old 12-21-2013, 01:10 AM   #26
nealm
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May 2013
Washington,DC, Maryland
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How about more detail regarding water level control and float valves.

 
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Old 01-18-2014, 03:06 AM   #27
kzimmer0817
 
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Dec 2011
Athens, GA
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Quote:
Originally Posted by steveoatley View Post
Hey ddahl84
And, do you think you could do the same as a one tier with two pumps ?
Oh, and how is that 12v pump holding up ?

Thanks
Steve
Steve,

I've been researching this method as well. I want to do BIAB, but I don't want to lift heavy bags of hot dripping grain. It's not that I'm not strong enough; I don't want to make a mess.

Search the electric forum for "brutus 20". Someone out there has 2 kettles set up with each recirculating back to a connection in their respective lids. When you're ready to do the "cross-sparge" (the recirculating back and forth between kettles), you simply swap lids. This is a single-tier with 2 pumps.

http://www.alenuts.com/Alenuts/brutus20.html
http://www.homebrewtalk.com/f51/brew...review-452347/
http://www.homebrewtalk.com/f11/2-vessel-system-291421/

I'm thinking that the simplest form of this mimics BIAB: you start with your entire volume of water and simply transfer half of it to the MT for mashing.

Keith

 
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Old 01-18-2014, 03:08 AM   #28
kzimmer0817
 
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Dec 2011
Athens, GA
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Quick question, ddahl84,
How high is the top of your MT? Do you stir your mash a few times during the mash? I like the idea of a 2-tier system, because you can get away with a single pump while the down-draining is managed by gravity. The problem, to me, is that the mashtun might be too high to easily stir.
Thanks,
Keith

 
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Old 01-18-2014, 03:03 PM   #29
kal
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Nov 2006
Ottawa, Canada
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Nice job! I especially like the the aluminum tag!

Quote:
Originally Posted by ddahl84 View Post
I was going to go that route but decided I like the look of separate switches and lights like theelectricbrewery. Just a personal preference.
You and me both! When I designed mine I looked at combined lights & switches but didn't really like them either. Personal preference like you said.

Enjoy the setup!

Kal

 
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Old 01-31-2014, 07:59 PM   #30
ddahl84
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Mar 2011
Minneapolis, Minnesota
Posts: 86
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Thanks for the nice complements. Sorry it's taken so long to reply. The couple of things I have changed is the float switch in the mash tun, because the cheep plastic ones where not reliable and stuck under mash temps, and made a nicer switch with alarm for the solenoid water filler.
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The pump has been great. I've done over 20 batches with it and love it. I really like the fact it's DC because I have wires running up my mash tun going to a relay to control the recirc.

In my opinion I like the two tier rather than two pumps. One pump is enough for something to go wrong.

I do have to put hops in a bag now otherwise it plugs up the pump.
One more thing to anyone starting a build in there house. Don't skimp on the ventilation. I tried bath fans, range hoods, and the only thing that ended up working was a Hydrofarm 400cfm in-line duct fan. 80$ on amazon. Do this first you won't regret it.


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