Quote:
Originally Posted by Hillcountry
I believe it's general practice to fill propane tanks (large and small) to about 80% capacity. Not sure if this is for safety or that it's a law but my twin 250 gallon tanks are never filled more than 75-80%.
As for the 20 lb. grill tanks, I always have a full one on hand as a backup in case I run out while grilling...never cared about how much propane was inside...
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You are correct the 75-80% allows for the expansion and contraction of the propane with changing temperatures.