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Old 07-16-2013, 10:42 PM   #1
orford
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Default Water pump for immersion chiller

Greetings all,

As a home brewer in DC and with the summer heat I have had a hard time getting my wort down to pitching temp using my immersion chiller. My tap water is simply too warm. So i was thinking I could use my tap water to star the process and then use a submersible pump to move ice chilled water through my immersion chiller. This would both help to get the wort down to a suitable pitching temp and since I am recirculating the water there would be less water usage as well. I was thinking about a 250 gph submersible pump. Thoughts?

Thanks

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Old 07-16-2013, 11:47 PM   #2
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I think mine is a 300 gph fountain pump, and it's fine with my 50' immersion chiller.

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Old 07-17-2013, 12:04 AM   #3
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Yep, should be fine. You may even want to choke it down a bit at the beginning after switch from tap water.

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Old 07-17-2013, 12:07 AM   #4
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I use a shurflo pump mounted to the lid of a five gallon bucket. I fill it with tap water and run that for a few minutes until it gets heated, dump it and do that a few times before adding ice. I usually use about ten pounds to get it to pitching temp.
Here is a link to the pump I use.

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Old 07-17-2013, 01:18 AM   #5
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This sounds like an awesome idea. I saw a ton of them on Amazon that seem pretty affordable. What do you think would be the minimum acceptable flow rate?

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Old 07-17-2013, 02:44 PM   #6
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I use this tiny pump to recirc ice water from a bucket. Works fine. http://www.harborfreight.com/lawn-ga...ump-68389.html

I use tap water to start then when things slow down I hook up the pump and ice water to get the last few degrees.

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Old 10-06-2013, 05:24 PM   #7
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Why do you need to start with tap water and then switch to pump?
I want to buy a 520 litre/h, it will be enough? In the same price range is a 600l/h pump.

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Old 10-06-2013, 05:33 PM   #8
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You don't have to, it is just more efficient. The difference in temps between boiling and tap water are enough to cool boiling down quite a bit. If you use ice, it just melts the ice and you need to get more. Starting with cool water to get down to maybe 100, then using ice/cold water to get it down to the 60s, works really well, without using a lot of ice.

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Old 10-06-2013, 05:58 PM   #9
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Now i get it... you talk about recirculating the water, i was thinking to run the water through, and get the hot water to use it for cleaning afterwards.
Any ideea if the 500-600 lph pump will work (130-160 gph, i think)? I have a 50' rib cage chiller, 3/8" OD copper.

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Old 10-06-2013, 08:56 PM   #10
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I ended up buying a cheapo aquarium pump, i believe it is about 150 gph. I have been running tap water through the IC until the wort temp hits 100 or so. After that I hook up the pump and recirculate ice water. Works really well and conserves some water. I typically use the initial outflow water for cleaning and such.

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