On Sun, 27 Jul 2008 21:42:14 -0500, "Hairy" > wrote:

>
>"CC" > wrote in message
...
>> The easiest way to check the fuel level in propane tanks
>> is to boil water in a pan or kettle then pour the hot water
>> down the side of the tank. When you slide your hand down
>> the tank where you poured the water, the temperature will go from hot to
>> cold,
>> Where it has turned cold is the level of gas in the tank. In the winter,
>> the gas coming from the tank will cause a frost
>> line around the side of the tank. This will also indicate fuel level.
>> CC
>>
>
>Actually, the easiest and most accurate way is to weigh the tank. Bathroom
>scales will do nicely.
>The typical 20# tank weighs about 18# empty, and of course, 38# full.
>Some tanks will differ on the empty weight, so to be sure, just look for the
>Tare Weight (TW) stamped into the valve guard (or carrying handle).
>
>Dave
>
Exactly! The only way to know is a scale. If the TW isn't marked you
can weigh the empty tank and use a marker for future reference.

Lou