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Old 12-16-2010, 11:31 PM   #1
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Default Building a copper manifold

.. for my mash tun.. Got all the 90's and Tee's laid out, cutting the tubing...

Couple questions.. How wide should the slits be? I know many people use hack saws, but I was hoping to use my dremel tool or peanut grinder with a cutoff wheel...

The cut off wheels I have for my peanut grinder are 3/64" thick.. Would probably make a cut that is 1/16".. I think the dremel blade is slightly thinner yet...

Also, I plan to use a short piece of 1/2" silicone tubing to connect the manifold to the outlet.. Can I use 'nylon' barbs? Or do they have to be stainless or brass? Will the nylon barbs handle the heat? With this set up, I'm thinking I won't need hose clamps.. or should I use them anyways?

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Old 12-16-2010, 11:42 PM   #2
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Those cutoff wheels should be fine. I'm not sure about the nylon. Silicon hose will be OK w/o clamps as long as the manifold can't come disconnected if it gets bumped while stirring the mash.

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Old 12-17-2010, 04:02 PM   #3
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Use the thin red cutting disks. They make skinnier slits, a slit every inch. Not too deep, you can always deepen, but you can't take the cut back!

Mine sucks the bottom of the MLT dry!

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Old 12-17-2010, 04:03 PM   #4
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Nylon will not handle heat!

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Old 12-17-2010, 04:37 PM   #5
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Dremels work great.

I would avoid nylon. For mine, I attached a copper male connector to the outlet and a female to the manifold. I just pressure fit them while mashing which works fine and makes removal pretty trivial.

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Old 12-17-2010, 04:56 PM   #6
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I understand the fear associated with using nylon but I use a nylon barb in mine with no ill effects.

I cut about a 2 inch piece of the copper pipe and shoved it over the barb. Snug fit. My manifold simply attaches to that.

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Old 12-17-2010, 05:24 PM   #7
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I connected mine with a length of PEX tubing. It fits snugly into 1/2 fittings and can bend a bit if you need it to.

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Old 12-17-2010, 09:42 PM   #8
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Quote:
Originally Posted by mariojr View Post
I connected mine with a length of PEX tubing. It fits snugly into 1/2 fittings and can bend a bit if you need it to.

Hey, I'll have to check that out.. I have miles of that stuff laying around...

Did you guys sweat your manifold fittings and tube together, or will it all stay intact without solder?
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Old 12-17-2010, 10:33 PM   #9
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Mine will stay together without soldering. I will 2nd the dremel tool as well, makes it really easy and quick.

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Old 12-17-2010, 10:42 PM   #10
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Quote:
Originally Posted by 2morrow View Post
Mine will stay together without soldering. I will 2nd the dremel tool as well, makes it really easy and quick.
Ditto. It stays together pretty well without soldering and I have mine built so it fits tight in the cooler.
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