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Old 01-10-2011, 02:15 PM   #11
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The only reason to pump the mash to another vessel is to free up the MLT to get another mash started. At the homebrew scale I see no benefit for this. I always do two batched when I brew, an extra hour is not going to kill me, I'm not doing it for money.

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Old 01-10-2011, 02:51 PM   #12
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I have a nearly identical Little Giant pump, and it is not rated for pumping solids. It will pass small particles and the like but pumping a thick mash slurry is almost certainly going to fail in an epic manner.

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Old 01-10-2011, 02:55 PM   #13
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Quote:
Originally Posted by cheese View Post
one advantage for boiling and mashing in the same vessel is that you need only one heat source.
Yes, they use a steam jacketed kettle (or kettles) and they do steam infusion mashes to control the mash temp... As such, they have a boiler system to generate the steam and direct the heat as needed, so they only have one heat source, as you note. Once you get to a commercial brewery scale, direct fired kettles are nearly if not totally useless, IMO.
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Old 01-10-2011, 04:27 PM   #14
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I see steam as media more than a heat source, like electricity for that matter.
The coils in the kettle are the heat source.

In the link I added there are only two heat sources, one in the boil/mash kettle and the other in the HLT.

I could place the boil kettle higher than the lautering tank so the grist will gravity fall.

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Old 01-10-2011, 04:37 PM   #15
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I like your system.....have you seen the build I'm working on (in my sig)? It's very similar....a basket may be just what you need!
Thanks, I like your's too.
thought about using a basket but couldn't find them here in Israel.
my system works pretty well, but i can't brew with it more than 6 gallon or very big beers.
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Old 01-10-2011, 07:26 PM   #16
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They have a cool looking bottle filler;
http://www.keg-gruber.at/index.php?p...id=104&lang=de

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Old 01-11-2011, 03:16 PM   #17
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That pump is only rated for fluids up to 1.1 SG, so I kinda doubt it would be able to handle the whole grist, but I'm not really sure. I'd think you'd need something with huge inlets and outlets to prevent clogging.
All though this is not our pump...in a way it is since LG copied all our products almost right down to the name!! Anyway the #5 pumps can handle up to a 2.0 SG if you trim the impellers. I cant say for sure what the size of the impeller on the LG pump is but our TE-5C-MD pumps have a 2.875 O.D. and that will handle up to a 1.1 SG you can trim the impeller down to a 2.125 and that will handle up to a 2.0 SG. Of course the flow rates drop off to a max of 13gpm and 15' of head height. The only downfall will be the size of the inlet's and outlets with clogging like JuanMoore said above.

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Old 01-11-2011, 04:52 PM   #18
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Thanks for the replay.
How do I calculate the SG of the grist?

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Old 01-11-2011, 05:21 PM   #19
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Slump test like cement, over 1/16" high forget it can't be pumped.

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Old 01-11-2011, 05:52 PM   #20
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The pump will not be the only problem when trying to move the thick mash slurry. The hoses and fittings would need to have a very large ID in order to avoid plugging problems. The in/out ports on the pump head will probably also be too small. I often thought that something like this might work well: http://www.rockler.com/product.cfm?p...EEAE8C38563EED

A shop vac would power it and the mash could be collected in the bucket then dumped into a lauter tun.

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