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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > lauter tun question
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Old 11-06-2005, 07:55 PM   #1
drengel
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Default lauter tun question

im building a lauter tun today out of a rectangular cooler using cpvc. my question is how do you put the holes or slots in the piping. i saw somewhere how to do this but cant find it now. do you need a drill, or a hammer and nail, or what?

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Old 11-06-2005, 08:00 PM   #2
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I think they're just cut with a hack-saw blade. I haven't done this - I use an aluminum screen - but that is what I remember reading once.

Ian

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Old 11-06-2005, 08:03 PM   #3
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You can use a hacksaw or a dremel. The width of a hacksaw kerf is about perfect for a lauter tun manifold.

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Old 11-06-2005, 08:23 PM   #4
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32 tooth per inch hacksaw

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Old 11-07-2005, 01:06 AM   #5
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thanks, the hacksaw works beautifully, should i space the slots at about 1/2'' apart. i read that but does anyone have a better method. because of some difficulties with finding a fitting to go into my spigot hole in my cooler, which still isn't solved, i have to wait til tommorow to finish this project. also, i read something in the palmer appendix online on building a mash/lauter tun about only cutting slots only on the long pieces, or something like that (i really didnt understand what he was saying-too scientific for a drunkard like me), but on someones picture of theirs in this forum there were slots on all the piping parts. is there a drawback to either method? does it really matter? am i making any sense?

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Old 11-07-2005, 03:48 AM   #6
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Palmer suggests just slotting the long pieces to save some work & every half inch is good. Slotting everything won't gain you much.

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Old 11-08-2005, 08:55 PM   #7
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I was reading the Palmer piece I think David is referencing here:
http://www.brewingtechniques.com/lib....4/palmer.html
where he specifies the manifold design wrt dimensions, etc. But he also has this to say which is counter all the general wisdom I've read:

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Likewise, the slots should face up or to the sides and away from the bottom to help prevent water from channeling along the floor. (Some brewers opt to face the slots down to avoid getting them clogged with grain, but I have not found that to be a problem.)
Has anybody done it like this?
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Old 11-09-2005, 03:42 AM   #8
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I slotted mine every half inch with a dremel tool, slots facing down. No problems at all after eight brew sessions.

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Old 11-10-2005, 07:35 PM   #9
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Default lauter tun question - reply

One of my first lauter tuns was a rectangular cooler (20L or so) with a copper pipe manifold. Copper pipe is easy to cut the slots into with a hack saw. I cut the slots about half way through the pipe diameter and spaced them about 1/4" apart. I had 4 pipes running lengthwise. The ends were made up of copper elbows and tees. These were soldered together but the pipes were left unsoldered so that I could take the pipes apart from the ends for easier cleaning.
There are some good instructions and other explanations on John Palmer's "How To Brew" website which is basically his book on the web. Check it out!

Seb

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Old 11-10-2005, 07:52 PM   #10
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i'm building mine out of cpvc. hopefully this wont give any off flavors to the beer, but from looking at other peoples setups it seems alot of people have used cpvc. anyways, im going to get the rest of the parts right now so i can finish it.

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