Can you fill old propane tanks?
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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.
Likewise, can you refill a propane tank before it's empty? So the smart thing to do (if you only have one tank) is to fill or exchange the tank before it is empty. Not an easy thing to do as it can be hard to judge. So you may be doing so with 5 pounds left in the tank. If you refill, you then simply add 15 pounds or so to the tank and pay for what you added.
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.
Can you fill a propane tank that is not empty?
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.