### Author Topic: Calculating Losses to hoses  (Read 3141 times)

#### blatz

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##### Calculating Losses to hoses
« on: January 16, 2013, 08:31:56 AM »
How much wort am I losing to 30' of 1/2" ID tubing?
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#### morticaixavier

• I must live here
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##### Re: Calculating Losses to hoses
« Reply #1 on: January 16, 2013, 08:44:06 AM »
~182322 cubic millimeters worth

If my math is right which I am not 100% sure about.
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#### Hokerer

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##### Re: Calculating Losses to hoses
« Reply #2 on: January 16, 2013, 08:46:46 AM »
How much wort am I losing to 30' of 1/2" ID tubing?

Well, 30' of 1/2" tubing is a volume of about 70 cubic inches which would be about 1.22 quarts
Joe

#### morticaixavier

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##### Re: Calculating Losses to hoses
« Reply #3 on: January 16, 2013, 08:49:44 AM »
How much wort am I losing to 30' of 1/2" ID tubing?

Well, 30' of 1/2" tubing is a volume of about 70 cubic inches which would be about 1.22 quarts

see I told you my math wasn't right.

His is
"Creativity is the residue of wasted time"
-A Einstein

"errors are [...] the portals of discovery"
- J Joyce

#### rjharper

• Brewmaster
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##### Re: Calculating Losses to hoses
« Reply #4 on: January 16, 2013, 08:50:25 AM »
I calculate (1/2" x 1/2" x PI)/4 x (30' x 12"/1') which gives a volume of 70.7 cubic inches which i about 1.22 quarts, or 1147 ccs.
Ross
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#### Hokerer

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##### Re: Calculating Losses to hoses
« Reply #5 on: January 16, 2013, 08:52:17 AM »

see I told you my math wasn't right.

His is

That's what you get for trying to go metric
Joe

#### morticaixavier

• I must live here
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• Underhill VT
##### Re: Calculating Losses to hoses
« Reply #6 on: January 16, 2013, 08:53:22 AM »

see I told you my math wasn't right.

His is

That's what you get for trying to go metric

yup, dropped a decimal place somewhere along the way.
"Creativity is the residue of wasted time"
-A Einstein

"errors are [...] the portals of discovery"
- J Joyce

#### brewmanator

• Cellarman
• Posts: 68
##### Re: Calculating Losses to hoses
« Reply #7 on: January 16, 2013, 08:55:47 AM »
I calculate (1/2" x 1/2" x PI)/4 x (30' x 12"/1') which gives a volume of 70.7 cubic inches which i about 1.22 quarts, or 1147 ccs.

That is more like what I calculated.  70.7 cubic inches is also around 2 imperial pints
- Mike

#### blatz

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##### Re: Calculating Losses to hoses
« Reply #8 on: January 16, 2013, 09:18:40 AM »
thanks guys!
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#### redbeerman

• Senior Brewmaster
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##### Re: Calculating Losses to hoses
« Reply #9 on: January 16, 2013, 09:41:41 AM »
Volume of a cylinder = Pi*r^2*h = Pi*.25^2*360 = 70.7 in^3 = 1.2 quarts yep
« Last Edit: January 16, 2013, 09:43:49 AM by redbeerman »
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#### ibru

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##### Re: Calculating Losses to hoses
« Reply #10 on: January 16, 2013, 10:23:21 AM »
Can't you drain the hose into a sanitized beer pitcher then dump into the fermenter? Hate to waste 2 plus pints of potentially good beer!

Bruce

#### blatz

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• Paul Blatz - Jupiter, FL
##### Re: Calculating Losses to hoses
« Reply #11 on: January 16, 2013, 10:29:29 AM »
Can't you drain the hose into a sanitized beer pitcher then dump into the fermenter? Hate to waste 2 plus pints of potentially good beer!

Bruce

not with my system - and most of that 'hose' is 2 CFCs back to back.  not to worry, I brew 12gal to make up all the losses...
The happiest people don’t necessarily have the best of everything; they just make the best of everything they have.

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#### narvin

• Brewmaster General
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##### Re: Calculating Losses to hoses
« Reply #12 on: January 16, 2013, 10:34:10 AM »

(pi * (0.25 inches) ^2) * (30*12 inches) in quarts

Also, your pump should keep prime until the head is empty, so you'll only have losses in tubing after the pump.  Or you could get a peristaltic pump and have no losses ;-)
« Last Edit: January 16, 2013, 12:38:07 PM by narvin »
Thanks

#### dean_palmer

• Cellarman
• Posts: 84
##### Re: Calculating Losses to hoses
« Reply #13 on: January 16, 2013, 12:01:20 PM »
I have two plate chillers back to back and was considering forcing out the last of the wort with oxygen. The same oxygen I use with an inline stone mounted in a tri-clamp, but then connected to the hose that came from the kettle to force all possible wort out of the system. At least it would be sanitary as opposed to using compressed air. I'll try it this weekend.

I'm also brewing extra to compensate, and it's about 1/4 gallon lost in my case.

#### a10t2

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##### Re: Calculating Losses to hoses
« Reply #14 on: January 16, 2013, 12:33:04 PM »
You can just push it out with water, as long as you're using clear tubing or a sight glass.
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