If this is true, how do they get by with Buring a LP tank in the ground for generators use here in Florida??

Sparr on hwy 44 does tank exchange.

I think I saw refill LP station at BJs

BJ’s has a propane tank fill station next to the fuel pumps. Go inside to the tire department to buy the propane.

I ran the numbers about a decade ago. Exchange tanks were filled to just 15# and cost about 25% more than a refill. That would make it 1.25/(15/20)=1.66 times as expensive to replace than to refill. And, that assumes you completely emptied your old tank. If the OP was trying to save money by asking what would be the cheapest, then refilling is the way to go.

I’ve wondered if they put only 15# in the exchange tanks was because 20# might be too heavy for some folks. But, it might just be so exchanging didn’t seem so expensive.

I have two tanks so I don’t have to be worried about running out and refill them at the Wildwood Ace.

My information is correct. Feel free to Google the 2009 statement from AmeriGas and Blue Rhino.

This US DOT page contains a PDF fact sheet which states, "Area for date requalified/retested (no date is shown indicating that the 10-year requalification is overdue)"

I *believe* there are different requirements for portable tanks and fixed tanks. There are likely inspection/requalification requirements for the fixed tanks too.

Go to Walmart. Pick out one of their newer tanks out of the exchange cage because you are going to keep it, they don't care. When you need a refill take it to Ace Wildwood or Ace Sothern Trace and have them fill it. They don't know or care that it is an exchange tank as it is exactly the same as the one you would buy at lowes. This is the best value because when you exchange a tank you do not get credit for the residual you left in the tank and as mentioned above exchange tanks are not full. I am in the business.

BJ's and Ace Hardware most everywhere else does a tank exchange
or Walmart has new and tank exchsnge

Blue Rhino delivers. Picks up empty and leave brand new full tank.

Yea, pay the deposit on one!

Go to Home Depot

fyi
 

you mean a 20 lb tank obviously - but actually they fill them 15 lbs - better off to get a refill at ace - cheaper . In a pinch most convenience stores and supermarkets do exchanges all within a few bucks of each other. 18.99 - 24. I expect you won't need to refill for a LONG time if its just pizza...

I would check the gasket in the valve on the propane tank when doing an exchange. I went with my neighbor and we both purchased full Blue Rhino tanks at Lowe's and they both leaked. Mine much worse and definitely not safe. Looking at the rubber gasket in both tanks they were both cracked and rotting. We took them back and got tanks with newer looking gaskets and didn't have another problem. I would have thought Blue Rhino would put new gaskets in when they refurbish the tanks but apparently that isn't the case.