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Home Brew Forums > Home Brewing Beer > DIY Projects > Chillers and Stir Plates > Immersion Chiller - Pump Recommendations
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Old 08-19-2009, 04:41 AM   #1
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Default Immersion Chiller - Pump Recommendations

All,

I'm building an immersion chiller this Friday from 50' of 1/2 copper tubing. My goal is to purchase a pump that goes into a cooler filled with ice water to pump the chilled water through the coil and back into the cooler (keeps the waste to a minimum). Can anyone recommend a pump or any specs to look at?

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Old 08-19-2009, 04:53 AM   #2
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ice will melt real quick. Dunno the math on it but 212 down to 70 with 32... you may need twice as much ice as wort.

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Old 08-19-2009, 04:56 AM   #3
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I was thinking about getting one of these the other day - Harbor Freight Tools - Quality Tools at the Lowest Prices

I have a small fountain pump from Harbor Freight and it works okay. Chills my wort down to 75 F in about 20-30 minutes. I really need to upgrade and was going to buy the one in the link. Finances too tight right now.

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Old 08-19-2009, 05:10 AM   #4
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I recently went this route(I live in Texas). I bought the 1 HP Submersible off Ebay for $22(shipping included). It was missing parts but I didn't care. I went to Lowes and found what I need. A mock up and then glued together and it was a go.



I use my Mashtun to hold the ice water. I use my garden hose to take the initial temperature down, then I switch to the chiller. Works like a champ.

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Old 08-19-2009, 05:43 AM   #5
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I use a 1/6HP utility pump I found used on Craigslist for $10.

You definitely don't want to cycle the icewater until you've hit a your temperature has stalled with tap water. For me (Northern California) I chill with tap water through my IC until I reach 80F. This takes about 10-15 minutes. Then I switch over to the utility pump in a cooler with ice. One bag of ice will take me from 85f to 68F in another 10-15 minutes. So for total cooling time, half of which I'm not wasting any water I can get right to pitch pitch temp for ales. For lagers, I add another bag of ice at 68F and can get down to 50F or lower in another 15 minutes. It's a great set up.

One thing that really helps the cooling is to rig a whirlpool around the IC. It's amazing how much the increased surface area will cut chill time.

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Old 08-19-2009, 07:36 AM   #6
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I use a 3W fountain pump and it works fine. Just make sure it can pump at least 350L / hr and has a fountain height of 1.5m. My first pump was a 1W / 200L / hr / 0.6m height and it wasn't strong enough.

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Old 08-19-2009, 08:21 AM   #7
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I started doing this about 2 batches ago. Here's the pump I use:

- Harbor Freight Tools - Quality Tools at the Lowest Prices

As per other people's suggestions, I cool with tap water until 100F, then recirc through the pump. Takes about 20-30 minutes to get to 68 for me.

I also used this to clean kegs, got that idea from someone else on the forum. Its not the most powerful pump in the world, but it works.

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Old 08-19-2009, 10:49 AM   #8
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I am working on a similar setup. My plan is to use the hose for the first 10-15 mins and keep the water for cleaning and watering the plants (now that it is nice and warm) then using the ice bath for the remaining 20-30 degrees

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Old 08-19-2009, 04:12 PM   #9
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Quote:
Originally Posted by Mosa View Post
I started doing this about 2 batches ago. Here's the pump I use:

- Harbor Freight Tools - Quality Tools at the Lowest Prices.
.....

That's the same one that I've been using for the past year and a half. Does a decent job. I really need to upgrade to the one in my first post. Getting to pitching temps quickly helps alot.
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Old 08-19-2009, 04:22 PM   #10
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Just curious, why are you all not going with a counterflow? You can get a 30 plate chiller from dudadiesel.com for $80. Small footprint and very efficient.

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