I drilled a couple of holes in the old tank to drain the pressure and water. There was some nice black iron sediment in the old tank. No wonder the water tasted bad.
Yesterday, working slow, I got the tank set and plumbed. The tank sits in a hole about 2' deep, OBTW. I used to 8" concrete blocks to keep the the tank off the sand floor. The walls of the hole are concrete blocks and are about 4" shy of reaching the top soil. Since the topsoil is mostly sand, a lot of it has pored into the hole over the years.
The original install used Sch 20 1" PVC. Of course, it cracked when I made the cut at the base of the hole and I didn't realize it until the pressure test. Had to demo a section of the hole wall to get to "clean" pipe. Turned out to be blessing because the pipe runs really ended up in a more direct flow.
FWIW, I installed a 30 gal Well-X-Trol (wx-203). It's nice to
not hear the pump every time a faucet is opened. Thanks to
https://www.supplyhouse.com/ for the quick ship and leadfoot145 for the recommendation.