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Old 10-28-2010, 08:17 PM   #1
Anubis
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Default DIY Rotating Fly Sparge Arm. Build and pics.

I originally posted this in my5 Gallon MLT W/Copper Manifold thread but thought I would give it it's own spot for easy searching. I found a design that used non standard pipe sizes and converted it to copper. I have found a lot of people looking for plans for one so I thought I would share.

This design was meant for a cooler style MLT so you may have to adjust size of arms and how you would mount it.

Sparge Arm Parts list:

1) Can o' Foam
1) 1/4" Copper T
2) 1/4" Copper End Caps
2) 1/4" x 4 1/4" Soft Copper
1) 1/4" x 3 1/2" Soft Copper
1) 3/8" x 2 1/2" Soft Copper
1) 1/2" x 6" Copper
3) Super Small Supper Skinny O-rings


Process:

First take the 1/4 x 3 1/2 piece of soft copper, straighten it and flare one side. Usually you can ask someone in a plumbing store do do it for you. I do it for people all the time.

Next, slide the 3/8 x 2 1/2 over the the flared piece. You may have to ream out the 3/8 piece to create a smooth action between it and the flare.

Now attach the 1/4 T and sweat it on. Also if you can't do this there might be someone you can ask.
You should en up with something like this.


Next take the O-rings and put them onto the 3/8 piece and slide that into the 1/2 x 6 piece.


Now take the 2) 1/4 x 4 1/4 pieces and, using a nail, tap starting points to drill holes in. Drill holes.

Sweat on the 1/4 caps to your newly drilled arms. It might be nice not to use the caps at all and just pinch them shut. It would be one less place to clean flux from. Then sweat those into your 1/4 T with the holes facing one or opposite directions (depending on your perspective) to push the arms.


Test your sparge arm, it should spin off of a basic gravity feed.


Attaching to MLT:

This is the part I'm working on still so these are still in the works. I'll edit this with the final plan once I'm done..... so, theoretically....

Now you have to drill a 1/2 hole through the center of the lid. This is a good time to spay foam into the empty space in your lid. QUICKLY slide your sparge arm through the lid before it can really expand. Clean off the excess.

Now slide a Washer with a 1/2 ID over the top of the 1/2 copper sticking out. Then put on a thick O-Ring the copper to hold it from falling through the lid.
After that you'll have to adjust to fit to your HLT. You can sweat a 1/2 Male Adapter or barb, etc. That part is up to you.

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GALLONS BREWED IN 2011 : 35
BUCKET 1 : Citra IPA 3
BUCKET 2 : Centenial Blonde
CARBOY 1 : Citrillo IPA
CARBOY 2 : Apfelwein
CARBOY 3 : Psyder test001
CARBOY 4 : empty
CARBOY 5 : Hopsplode
KEG 1 : Palefoot APA
KEG 2 : empty
KEG 3 : Star San
BOTTLED : Nothin'
BUILT: MLT W/Copper Manifold & Rotating Sparge Arm
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Old 10-28-2010, 08:24 PM   #2
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Cool write up. Be sure to post some "in action" shots.

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Old 01-03-2011, 04:17 AM   #3
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Is there an update yet? How did the mounting through the foam work out?

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Old 01-03-2011, 02:53 PM   #4
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Nice design! Prost!

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Old 01-03-2011, 03:42 PM   #5
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I have to say that is a very nice design and nicely built. My question is why a sparge arm when a piece of silicone tubing would work just as well if not better?

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Old 01-03-2011, 04:04 PM   #6
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Quote:
Originally Posted by Sawdustguy View Post
I have to say that is a very nice design and nicely built. My question is why a sparge arm when a piece of silicone tubing would work just as well if not better?
+1 and additionally, we have not yet seen the above rotating sparge arm actually in operation. Why is that?
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Old 01-04-2011, 02:25 PM   #7
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Quote:
Originally Posted by Sawdustguy View Post
I have to say that is a very nice design and nicely built. My question is why a sparge arm when a piece of silicone tubing would work just as well if not better?
I have not heard of or seen this silicone tubing idea before, and I tried searching for it. Could you direct me to it please?
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Old 01-04-2011, 02:35 PM   #8
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Quote:
Originally Posted by EarthBound View Post
I have not heard of or seen this silicone tubing idea before, and I tried searching for it. Could you direct me to it please?
I did a forum search on "Fly Sparge with Silicone Tubing" using the google forum search.

http://www.homebrewtalk.com/f11/fly-...method-210927/

http://www.homebrewtalk.com/f36/fly-...88/index2.html

http://www.homebrewtalk.com/.../spar...h-pump-156445/

There are alot more threads referencing this.
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Old 01-04-2011, 03:03 PM   #9
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Quote:
My question is why a sparge arm when a piece of silicone tubing would work just as well if not better?
Come on Sawdust, are you kidding. A chance to DIY and spend more money is certainly not to be missed!
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Old 01-04-2011, 03:08 PM   #10
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Quote:
Originally Posted by Sawdustguy View Post
I did a forum search on "Fly Sparge with Silicone Tubing" using the google forum search.

http://www.homebrewtalk.com/f11/fly-...method-210927/

http://www.homebrewtalk.com/f36/fly-...88/index2.html

http://www.homebrewtalk.com/f51/diy-...h-pump-156445/

There are alot more threads referencing this.
Thanks. Oh, that's what you were talking about: laying the tubing on the mash. That seems less efficient to me compared to uniformly distributing the sparge water over the surface of the grain like a sprinkler system. What do you think?

I'm thinking about doing something like one of these (probably the second one because it's cheaper):
http://www.homebrewtalk.com/f11/hey-...rge-arm-79824/
http://onebeer.net/recirc_howto.shtml
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