When draining the wort from the tun... - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > When draining the wort from the tun...

Reply
 
Thread Tools
Old 09-14-2009, 11:56 PM   #1
dmbnpj
Recipes 
 
Mar 2009
NC
Posts: 524
Liked 3 Times on 3 Posts



into the boil pot, after batch sparging, while using a March 809 pump to do so, is there any point to closing the spigot 1/2 way or should I just open it up and let it free flow? Will it improve efficiency by draining slower?



 
Reply With Quote
Old 09-15-2009, 12:05 AM   #2
chumprock
Recipes 
 
Dec 2008
Rochester, NY
Posts: 1,035
Liked 35 Times on 24 Posts


Running it full open can compress the grain bed and potentially cause a stuck sparge.

..or so I'm told.



 
Reply With Quote
Old 09-15-2009, 12:17 AM   #3
Picobrew
Biscuit Enthusiast
HBT_LIFETIMESUPPORTER.png
 
Picobrew's Avatar
Recipes 
 
Jan 2009
NW Portland, OR
Posts: 1,136
Liked 23 Times on 15 Posts


I don't use a march pump, but after vorlauf, I always run full open. I use rice hulls every time, and don't ever get a stuck sparge. I have had a stuck sparge when not using rice hulls, though. FWIW I get about 80% efficiency in an igloo 10gal MLT w/ steel braid.

 
Reply With Quote
Old 09-15-2009, 12:43 AM   #4
stevea1210
Recipes 
 
Mar 2008
Lancaster, PA
Posts: 747
Liked 2 Times on 2 Posts


From everything I read, you should not restrict the flow on the input side of a march pump. I would suggest throttling at the output side. I'm assuming you have a ball valve on the output side of your pump.

My first brew after getting my pump, I opened everything wide open, compacted my grain bed, and got a stuck spage. IT was a bit of a pain, but not as bad since I had a pump. The two brews since I have opened the tun valve all the way, closed down the output side of the pump, and had perfect flow, crystal clear wort, and nostuck sparge.
__________________
You'll have to speak up, I'm wearing a towel. - Homer Jay Simpson

 
Reply With Quote
Old 09-15-2009, 12:49 AM   #5
arturo7
HBT_SUPPORTER.png
 
arturo7's Avatar
Recipes 
 
Apr 2007
Huntington Beach
Posts: 9,677
Liked 479 Times on 330 Posts


Steve, how much did you restrict the flow on your pump? 30% 50%? 70%?
__________________
Hey, knock that shvt off. We're drinkin' here.

 
Reply With Quote
Old 09-15-2009, 01:18 AM   #6
stevea1210
Recipes 
 
Mar 2008
Lancaster, PA
Posts: 747
Liked 2 Times on 2 Posts


A decent amount. I would probably say 50%. I might also add that recirculating the wort via the pump for two minutes prior to draining has given me 8%, 12%, and 14% increases in efficiency in my 3 batches with the pump.

I can't say what the *correct* amount is, but for me
wide open = stuck sparge
@50% restriction = beautiful wort.
YMMV
__________________
You'll have to speak up, I'm wearing a towel. - Homer Jay Simpson

 
Reply With Quote
Old 09-15-2009, 12:49 PM   #7
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,151
Liked 1622 Times on 1050 Posts


It would also depend on what your separation medium is. False bottoms, at least in my experience, are the most prone to a stuck runoff due to compaction. I close the pump output valve by at least 30% during the runoff and then slow it even more right towards the end to give the wort enough time to fill the deadspace.
__________________
Welcome to BrewHardware.com. I love you.
BIAB Large Mesh False Bottoms and SS HERMS COILS are IN!!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 09-15-2009, 02:36 PM   #8
pjj2ba
Look under the recliner
HBT_LIFETIMESUPPORTER.png
 
pjj2ba's Avatar
Recipes 
 
Jul 2006
State College, Pennsylvania
Posts: 3,382
Liked 205 Times on 167 Posts


It takes a while for the liquid to drain through the grain bed. If you drain to fast you'll drain out most of the liquid. If you dig a small hole through the grain to look at the bottom of your tun it will look like you drained everything. However, if if you then wait a few minutes and check, there will probably be a couple inches of wort that has percolated down. Depending on the design of your pickup tube, it can be difficult to pump this out now that you don't have the pressure to start the flow again. Better to just throttle it back a little to allow the liquid the percolate down.

That being said, I do two sparges after first doing a run off. I typically run my pump at about 50% when I first drain and for the first sparge, but then throttle it back to less the 25 % for the final sparge. With a pump the vorlauf is so easy I have no problem with doing a second sparge.


__________________
On Tap: Doppelbock O'fest, Pale Ale, cider
Kegged and Aging/Lagering: CAP, Ger. Pils, OKZ (std Amer. lager), CZ Pils, Amer. Wheat, Rye IPA, Saison
Secondary:
Primary: Ger Pils, CAP
Brewing soon: Pale lager, Amer. wheat
Recently kicked : (
Pilsner Urquell Master Homebrewer
(1st NYC 2011, 2nd NYC 2012)
P U crowns winners in its inaugural master HB competition

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Temperature while draining wort? imrowe All Grain & Partial Mash Brewing 3 05-27-2009 06:14 PM
draining mot All Grain & Partial Mash Brewing 7 03-17-2008 09:26 PM
Draining the Keggle Turkeyfoot Jr. General Techniques 5 01-14-2008 03:30 PM
draining speed shmevinator All Grain & Partial Mash Brewing 6 01-04-2008 10:06 PM
Draining/Sparging uwmgdman All Grain & Partial Mash Brewing 12 06-22-2006 02:33 AM


Forum Jump