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Old 12-31-2008, 03:00 AM   #31
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Thanks for the inspiration. After looking at some guys homebuilt IC on Ebay - he was asking $40 +shipping for a 25 foot of 1/4 inch that looked kind of skimpy - I saw this DIY thread & decided I could make one easily enough by myself. I was in luck because I had a new 50 ft. roll of 3/8 tubing laying in the basement still coiled up from a previous AC condensor replacement, so my cost if I screwed it up was going to be nil.

Not all of us have a spare Cornelius keg laying around - or an extra set of hands at 9PM, so I took the basic idea & modded it up a little bit. I found an empty 1 gallon paint can - and shot 3 drywall screws through the bottom of it onto my wooden workbench.



Now I had a nice steady platform to work from - so I uncoiled about 24" from the big round coil - straightened it out a little bit & then used a pair of vice grips with soft jaws to clamp it to the workbench. I was then able to wrap around the paint can "Form" by just feeding the loop around the can & following itself up the side of the can, same as the video.



Once I got to the place where the carry strap was attached to the paint pail, I figured I only had about 20 foot of coil left - so I cut the rest & then bent the ends up & tied them with some copper wire. I used 3/8 copper coil - and it was easy enough to bend by hand that I didn't need to worry about making any solder joints. I used the plastic sink hose from a "Pet shampooer" and a hose clamp. The free end of the copper was easy enough to bend down so it shoots right into the drain on the other side of my double sink.



I did a test run & took 2 1/2 gallons boiling water down to 75 degrees in a little over 5 minutes. My tap water runs about 55 degrees. I plan to double up with an ice bath on the outside (just like I was doing before) while running tap water through the Immersion Chiller.



Total time invested - about 1 hour of actual "build" time - and another 2 hours of cleaning, scrubbing, testing & searching for stuff - then going back & posing some photos to show how I did it. I'm going to soak the IC overnight now in a vinegar & water solution & try it out this coming weekend.

-XX

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Old 02-08-2010, 07:44 PM   #32
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I know this thread is a little old but I wanted to post my finished product since I basically copied everything that Bobby did on here.

Prior to this project I had no experience soldering copper, just electronics. After a couple of tries I figured it out the the majority of the joints came together quite easily. The worst part was trying to track down the elbows, apparently there was a run on them at the 3 closest home improvement stores. Kinda annoying driving around for 2 1/2 hours for some two dollar parts.

Soldering is a little ugly but no leaks. Can't post pictures yet so here is the link.



http://www.flickr.com/photos/1189361...n/photostream/

Used it last weekend and took 3 gallons down to 70 degrees in under 5 minutes. Granted it was about as cold in Houston as it's ever been, but compared to my 30+ minute ice baths it was amazing.

Thanks so much for the great tutorial.

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Old 02-08-2010, 08:20 PM   #33
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nice...I just built my "Bobby M" chiller yesterday...didn't have a keg or anything larger than a waste paper basket to coil the copper so it's not as pretty as I'd like it to be but then again neither am I...no leaks either...Should be breaking it in this weekend.

Funny thing though...I got both of the hose fittings at Ace (North Brunswick, NJ location is closing BTW for all you local folks...could get some good deals)...both were 5/8 but one of them slipped on the tubing just fine while the other required drilling it out to 1/2" as Bobby mentioned in the video...drilling that thing without a vice was a bitch but it worked...and at least I only had to drill one of them...

Thanks Bobby!

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Old 02-09-2010, 02:54 AM   #34
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well, i suck at life pretty much... my IC sucks, yours rules!

i wish i had watched this before making the mangled mess of a chiller i threw together.

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Old 02-09-2010, 02:51 PM   #35
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No worries man, if it doesn't leak and it DOES chill wort, good enough.

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Old 02-15-2010, 04:22 PM   #36
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Used mine for the first time yesterday and got the wort down to 65 in under 10 minutes...beats the snot out of my sink-full-of-ice-water method...

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Old 03-05-2010, 04:28 PM   #37
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Excellent video bobby, as always. I've got all the materials for building the bobby m chiller and will probably get around to it early next week. Question though - what all did you guys do to clean your chillers before first use in wort?

I've read soaking in vinegar, but what about scrubbing it down beforehand? Will dish soap do the job or should i use something stronger?

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Old 03-05-2010, 04:51 PM   #38
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Sure, you can do an oxyclean soak or scrub it down with dish soap and a brush. The vinegar or starsan soak is a way of getting it to really shine.

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Old 03-08-2010, 04:15 PM   #39
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So I got most of my chiller built yesterday. I am having a couple issues though.

1) My 3/8" fittings actually fit OVER the copper refrigeration tube not underneath as I was expecting. The sauldered joints seem to be holding and aren't leaking, hoever.

2) I bought 1/2" male + female brass hose couiplings and they seem to slide right over top of the copper pipe without drilling, and actually fit quite loose. I'm going to head back to Canadian Tire and try to find smaller garden hose couplings. I'd rather drill them out a bit for a snug fit then take a chance with something as loose as these fittings were.

It almost seems like I bought 3/8" tubing but I double checked the packaging and it definitely says 1/2....

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Old 03-08-2010, 05:14 PM   #40
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The confusion has to be the fact that soft copper refrigeration tubing is named for it's OD. In other words, 1/2" really means 1/2".

I think the hose barb issue is related to the fact they are sized for the hose ID they are supposed to slide into. The ID is manufacturer specific. It's probably best to hack off a short piece of your tubing and go to the store with it.

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