Can you fill old propane tanks?
Likewise, where can I fill up my propane tank?
The liquid propane tank that provides the gas to an outdoor gas grill can be purchased at any number of stores, including local hardware stores, larger grocery stores, big-box home improvement centers, and mass merchandise centers, such as Walmart or Costco.
Additionally, what does it cost to fill a propane tank?
The cost to refill a propane tank varies from $3.00 - $4.00 a gallon at most U-Haul propane refill locations. On average, you will be spending $1.76 less per gallon by refilling your propane tank rather than exchanging it.
Filling Propane Tanks. Most grills and small campers use standard 20 lb propane tanks. Most tanks that are refilled are not completely empty but, if they're filling a "20 lb tank" they will charge you for "20 pounds" whether they actually delivered 20 pounds or not. And they usually are not.