It is amazing the differences between the northern and southern climates. In Minnesota our pitless adapters (water come out of the side of the well through these) had to be 7' below grade. Back in the day they would dig well pits to put the stroke pump and pressure tank in to keep them from freezing, they were often 10' deep. On cabins folks would bury the pressure tank to keep it warm (greater than 32 degrees). To see a pressure tank sitting out in the open with no protection is amazing to me. Sure beats the heck out of a well pit. Most of them were so tight you had to climb down, then have a guy lower the tank. You then would unhook it, climb over the tank if you could not wedge by it. Then push it back into the corner before hooking it up. Being the small guy I had the privilege of being in the pit when setting the tank while the other guy ran the crane.
Those old galvanized bladderless pressure tanks were durable. They required you to keep the air level right, but they were sure better built than todays tanks.