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Home Brew Forums > Home Brewing Beer > General Techniques > Pump for immersion chiller
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Old 09-09-2010, 11:21 PM   #1
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Default Pump for immersion chiller

I have to improve my AG cooling methods due to the fact our tap water is over 80. I have been running tap water through a pre-chiller placed in a cooler of ice water then over to the immersion chiller until it gets down to about 110 (10-15 mins). I'm not sure the pre-chiller is very effective. I then switch to a battery powered sump pump and recirculate the ice water through the IC but the pump is pretty weak so the entire cooling process takes about 45 minutes to get to 65 degrees. I wanted to get a sump pump to use in place of this battery powered thing I have but they seem to be 1000+ GPH which seems like way too much for what I need. Does anyone have a pump recommendation?? Thanks!

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Old 09-09-2010, 11:37 PM   #2
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I don't have any experience, but I've heard folks mention pumps for fountains work well. You can find them at Harbor Freight pretty cheap.

http://www.harborfreight.com/catalog...=fountain+pump

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Old 09-10-2010, 12:32 AM   #3
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Aquarium powerheads work well

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Old 09-10-2010, 03:11 AM   #4
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I use the 258 GPH pump from harbor freight. I just use tap water to get to 100 then I hook up the pump. Works great.

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Old 09-10-2010, 03:13 AM   #5
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Quote:
Originally Posted by HometownHoosier View Post
I use the 258 GPH pump from harbor freight. I just use tap water to get to 100 then I hook up the pump. Works great.
I use the same one and it works great.
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Old 09-10-2010, 04:45 PM   #6
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I'm looking to do the same.

Have seen folks recommending 170-200 GPH as sufficient.

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Old 09-10-2010, 04:52 PM   #7
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I went with the Harbor Freight one mainly because it is inexpensive and it was easy to attach to the Garden hose fitting on my IC.

As long as there is water inside the IC, I would imagine a smaller pump would work okay. I do have to pull a little vacuum with the 258GPH to get it flowing though, but I'm sure that is just due to my setup.

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Old 09-10-2010, 05:20 PM   #8
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65dg in 45min pretty good.

This is my pump of choice for cold water ONLY http://www.rvpartscountry.com/RVWaterPump115V they also come in 12dc for about 60$. Lots better than any harbor freight pumps. They work when you need them.

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Old 09-10-2010, 09:01 PM   #9
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I use a 1/4hp, 115v submersible pump from Harbor Freight. I bought it to help me move water from my cellar [old farm-style of foundation walls which are extremely porous] to the sump crock. Works equally well to circulate chilled/iced water through my immersion chiller.

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Old 09-10-2010, 09:27 PM   #10
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Originally Posted by HometownHoosier View Post
I use the 258 GPH pump from harbor freight. I just use tap water to get to 100 then I hook up the pump. Works great.
Doing this Over the Weekend for first time, getting my pump tonight, brewing Sunday. Last weekends boil I could only get down to 110° with plain tap water.
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