The bladder in a 1988 vintage pressure tank for home well is shot.
Pump itself is 325 feet down at bottom of the well. I will probably
replace the tank with one suggested from local plumbing supply
wholesaler but curious on a statement seen on Filtrol brand tank seen at
Home Depot the other day while picking up painting supplies.

The box for the unit claimed that this 19.2 PSI tank was equivalent to a
44 PSI unit.

What black magic are they doing to make this happen or
has technology in this field improved to some great point?

Steve