In 1859 or 1860 Dr Sadler had the Pump House built at Salt 's Hole used for medicinal purposes since the Middle Ages and possibly earlier .
Salt 's Hole is a natural mineral water spring near Purton Stoke .
In 1859 or 1860 Dr Sadler had the Pump House built at Salt 's Hole , a natural mineral water spring near Purton Stoke , used for medicinal purposes since the Middle Ages and possibly earlier .