slow run off

Dennis King · Post by **Dennis King** » Sat Aug 09, 2008 2:20 pm

Brewing today. Recently changed from using a coverted f/v as a mash tun to a picnic cool box one. Can`t beleve how slow the run off is. I have seen other posts that state this is a good thing but at the moment it`s been 2 hours of a faint trickle. Have added some extra slits to the manifold but still slow, Is this nomal for these m/t`s, any ideas to speed it up a bit. The old way use to take about 1 hour.

BlightyBrewer · Post by **BlightyBrewer** » Sat Aug 09, 2008 3:32 pm

There's no reason why your run off should be any slower with a cool box mt. Was there a lot of flour in your grist? This can cause a stuck mash. Is your tap opening properly?

Dennis King · Post by **Dennis King** » Sat Aug 09, 2008 4:21 pm

Grain seems ok. Tried tap in a few positions, read on this site it is best not to fully open.

russt1969 · Post by **russt1969** » Sat Aug 09, 2008 4:45 pm

Fully open the tap. It may have a slight block. This will clear it and it'll run better.

RabMaxwell · Post by **RabMaxwell** » Sat Aug 09, 2008 4:47 pm

Try blowing backwards to unclog the manifold

Dennis King · Post by **Dennis King** » Sat Aug 09, 2008 5:58 pm

russt1969 wrote:Fully open the tap. It may have a slight block. This will clear it and it'll run better.

tried it

Dennis King · Post by **Dennis King** » Sat Aug 09, 2008 5:59 pm

RabMaxwell wrote:Try blowing backwards to unclog the manifold

Tried it. The wort taste nice

Calum · Post by **Calum** » Sat Aug 09, 2008 6:30 pm

This may sound silly but I was getting slow runoff with my old picnic cool box. What it turned out to be was that I was shoving the small plastic tubing that connected the manifold to the tap too far up the manifold at the t-piece and restricting the flow through the manifold.

scarer · Post by **scarer** » Sun Aug 10, 2008 6:47 pm

I have to ensure that the end of the hose stays near the top of the surface of the wort otherwise the run off slows right down.

hoppingMad · Post by **hoppingMad** » Mon Aug 11, 2008 3:47 am

Have you tried it with just plain water, to see if you get a good fast flow ?

Dennis King · Post by **Dennis King** » Mon Aug 11, 2008 7:26 pm

hoppingMad wrote:Have you tried it with just plain water, to see if you get a good fast flow ?

yes Its fine

hoppingMad · Post by **hoppingMad** » Tue Aug 12, 2008 1:27 am

manifold slits should be about 1 cm apart and sawn about 1/3 to 1/2 way through. If you are still having trouble after this, it could be your grains.

mysterio · Post by **mysterio** » Tue Aug 12, 2008 10:23 am

Got a pic of your manifold?

Matt · Post by **Matt** » Tue Aug 12, 2008 1:30 pm

Did you have a lot of water above the grain bed?

Dennis King · Post by **Dennis King** » Tue Aug 12, 2008 8:31 pm

Matt wrote:Did you have a lot of water above the grain bed?

Was thinking this today. Was more than usual this time to get temperature right. This never a problem in the old m/t.

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slow run off

slow run off