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Old 09-17-2013, 07:47 PM   #1
Moose1231
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I made a little diagram to explain my concern. Let's say I need to transfer wort from kettle A to kettle B using a pomp, and let's say that I have a marsh pump. I heard that a marsh pump can't dry run, which as I understand, means that there must always have liquid in it in order to pump. Does that means that I lose some wort in A?


 
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Old 09-17-2013, 07:52 PM   #2
LandoLincoln
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Typically, yes. I just did a test last night of my rig. 2 6-foot hoses and my pump holds about 560ml of liquid. So you're not losing a lot. You're probably going to lose more in the dead space of the kettle you're transferring from.
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Old 09-17-2013, 09:30 PM   #3
Mrmojo
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Along the same lines, can you pump into the bottom of vessel B or does it need to go "over the top"?

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Old 09-17-2013, 10:12 PM   #4
Yooper
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Quote:
Originally Posted by LandoLincoln View Post
Typically, yes. I just did a test last night of my rig. 2 6-foot hoses and my pump holds about 560ml of liquid. So you're not losing a lot. You're probably going to lose more in the dead space of the kettle you're transferring from.
You don't lose much, though, as you mentioned.

I don't care about the water in my hoses, but at the end of the boil I have quite a bit of wort in the chiller, pumps, hoses, so I just switch the hose over to A (in that diagram), which has a wee bit of water in it, and then pump until that water is seen at the end. It also gets me a start on cleaning as well, but ridding the coil and tubing and pump of sticky wort.
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Old 09-17-2013, 10:19 PM   #5
Stealthcruiser
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Quote:
Originally Posted by Mrmojo View Post
Along the same lines, can you pump into the bottom of vessel B or does it need to go "over the top"?

You could pump to the bottom, although I don't know how much " head "those pumps can produce, so if vessel "B" was a little lower than "A", you would get a good transfer I imagine.
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Old 09-17-2013, 10:46 PM   #6
ClaudiusB
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Quote:
Originally Posted by Yooper View Post
You don't lose much, though, as you mentioned. , so I just switch the hose over to A (in that diagram), which has a wee bit of water in it, and then pump until that water is seen at the end.
I do the same thing.
I learned it from a German brewery while interning in 1995.

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Old 09-17-2013, 11:27 PM   #7
boat_eggs
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Could you do an airblow on the line with compressed air?

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Old 09-17-2013, 11:51 PM   #8
BigJay13
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When I'm done pumping I just unhook the hoses and drain whatever is left into a container. If its on the hot side I put it into kettle b. if its cold side I just discard it. You don't lose a lot.

 
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Old 09-18-2013, 12:38 AM   #9
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Quote:
Originally Posted by boat_eggs View Post
Could you do an airblow on the line with compressed air?

Possibly...........Prolly' better to use your C O2 source if you have one......No chance of oil from your compressor.
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Old 09-18-2013, 04:05 AM   #10
jpalarchio
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Such a small amount of liquid. Just account for it in your recipe if you want and start out with enough to make your final volume.

 
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