Looking to purchase a home, noted the home is built in 1957. Several situations noted leaks and rusty components. Motor new on pump and appears someones already started looking at this system. Research indicates this is a deep well Jet setup. Looking at the pressure guage at 30 PSI and the pump continued to run, secured power and noted bladder tank is pushing water at spigots. Absence of sweat at feed line indicates no leaks in system. Lets say that its in the hole and worst case scenario its a bad casing. Is this a liner installation event or a removal and replacment of same deal.