theoldwizard1 wrote:
opnspaces wrote:
They can only fill to 80 percent.
ABSOLTE BULLSH!T !!
It is call a "20 lb tank" because it is design tested and certified to hold 20 lbs of propane !
The 80% rule is mandatory and is regulated by the Department of Transportation (DOT) in the United States and by similar organizations in other countries. Propane retailers and suppliers are required to follow the 80% rule when filling tanks, and customers should expect that their tanks will not be filled to capacity.
To calculate the approximate fill capacity of your propane tank, you can multiply the tank’s total capacity by 0.8 (80%). This will give you the maximum amount of propane that the tank can safely hold, taking into account the 20% head space required for expansion.
For example, if your propane tank has a capacity of 100 gallons, the maximum safe fill capacity would be 80 gallons, which can be calculated as follows: 100 x 0.8 = 80.