### Author Topic: What is full on a 10 pound tank  (Read 852 times)

#### will

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##### What is full on a 10 pound tank
« on: July 26, 2010, 07:40:24 PM »
Filled it up and it only read 500 on the gauge.

#### a10t2

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##### Re: What is full on a 10 pound tank
« Reply #1 on: July 26, 2010, 09:47:11 PM »
Vapor pressure above a liquid is only based on temperature, not how full it is. 500 psi would correspond to about 32°F. If that's how cold your tank is, there's no problem.

FWIW, in a 10 lb tank the pressure will start dropping when there's about a pound left.
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#### euge

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##### Re: What is full on a 10 pound tank
« Reply #2 on: July 27, 2010, 10:53:25 AM »
And, weigh it empty and again after it is filled. Should gain 10#. Then it is simple to calculate how much you have left regardless of the gauge.
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