I agree there have been times when I'm camping that there just is no
place to get a refill, especially on a weekend. Because of this, I have
always brought a spare tank. Only once did I run both tanks empty, and
was unable to find a place to get a refill. Fortunately that same time
I found a business with whom I'm familiar, who sold the prefilled tanks.
It's their own brand and I was comfortable with them. The cost was
slightly higher than a refill, but in a pinch, it served me well, and I
did get a newer tank in the process too.
As far as BR not filling their tanks with as much propane, it's pretty
well known that ALL of the companies that sell pre-filled tanks do not
fill them to their maximum. A 20lb tank is really only a 16lb tank
because ALL propane tanks can only be filled to 80%. This means that
the 500 gal. tank in your yard can only get 400 gallons, and a 20lb can
only get 16lb. But there have been articles in recent years that state
that 20lb pre-filled tanks contain only 13lb or a similar number. I
guess that's the cost we pay for convenience. Same as paying $3 for a
gallon of milk at a convenience store while a grocery store only charges
$2 for the same product. My biggest complaint is that these tanks do
not tell the amount of fill. Because of this, if you normally get a
specific amount of hours of use from a FULL tank, you are not going to
get the same hours of use, and it's not possible to know when the tank
will run out, not knowing the content in pounds. They really should be
required to state the weight or amount of propane.