So this seems like a basic question, but I'll ask anyway because I've seen varying answers. Our new trailer has one 20# propane tank. It generally looks just like a tank at your local Menards you ca...
The only time I use a tank swap is if it is past the recert date. Swapping is cheaper than paying to get it recert.
Once I found an old rusted up tank in a field, obviously no longer usable. I took it to a Walmart for a swap, and they took it in trade. Now I have a second spare.