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Old 02-19-2013, 04:47 AM   #1
buzzbromp
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I just bought a pump and was planning on trying to use it to recirculate the mash through a copper coil heat exchanger in the hot water tun for the first time. I was planning on draining the runnings a few times first before pushing the mash through the pump. I imagine some grains will still get pushed through. Do you have to worry about damaging the pump from grain impingement?

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Old 02-19-2013, 03:45 PM   #2
jfowler1
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I have been running a HERMS system just like that and have had no problems with grain damaging/clogging the pump. What type of false bottom are you using in the mash tun?

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Old 02-19-2013, 10:55 PM   #3
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I normally drain about a quart or two, twice to help it settle then I connect my pump and recirculate. No issues.

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Old 02-20-2013, 12:44 AM   #4
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Wow, I have never once drained any runnings before running it through my pump. I use a false bottom and have never had an issue tbh.

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Old 02-20-2013, 03:36 PM   #5
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I too have never had a problem.

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Old 02-20-2013, 04:06 PM   #6
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Thanks for the replies. I have a typical false bottom. When i sparge and drain to the boil kettle I typically run a pint or two and throw back in to the mash. After that the runnings are pretty clear. I'll do the same before hooking up to the pump. I haven't actually used the system yet. I was just thinking ahead.

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