Browsing: Jill Heinerth

Regulator free-flows are one of the greatest hazards when diving under ice or in very cold water (less than 4°C). The condition is caused by the sudden drop in pressure as air passes from the cylinder through the first stage. When high pressure air passes through the first stage, it hyper-cools the metal moving parts.

The scope of Canadian diver Jill Heinerth’s contributions to the underwater world is defined by the magnitude of her work. She is a cave diver, explorer of the deep, writer, photographer  and film maker. PBS, the National Geographic channel and BBC have broadcast films that were created by Jill. The directors who have consulted her include James Cameron. She has written books and produced documentaries.