If there's one drilling project that could use the high-tech advantages of award-winning sonic drilling, it's the long-standing treasure hunt on Oak Island — an island in Nova Scotia, Canada, and home to a captivating legend about sunken tunnels, unexplained artifacts, strange stone markings and buried treasure.
Captive air tanks did away with the problem of water logging and also gave the customer far less rusty water than the old-style pressure tanks because the water in the tank and the air were completely separated. This, however, created a whole new situation regarding iron filtration.