Warning

Every time we sell a manifold or switch block, we shudder a little bit. The gas switch block is used in primarily by hookah surface supply divers to switch from surface supply to emergency bailout gas. Manifolds are primarily used in gas distribution systems. But the key here is that there are not different gas mixtures involved.

Unfortunately divers sometimes get the idea to match these products up with multiple cylinders and/or or quick disconnects to create some type of elaborate system for rapid switching between different gas mixtures and/or cylinders. Gas switching errors are very often involved in technical diving accidents. Over the years we've learned about several near misses and fatalities that were directly attributable to mistakes with switch blocks that were connected to different gas mixtures. No matter how careful the diver, or how many safeguards, we think using switch blocks with different mixtures is a very bad idea.

Sydney and NSW Dive Sites

Dive the Great Southern Reef in NSW

Sydney, NSW, Australia, and NSW generally, has some interesting shore and boat dive sites, most of which are part of the Great Southern Reef which is a more colourful and abundant reef ecosystem than that of the world famous Great Barrier Reef. These resources, put together by the amazing Michael McFadyen, will help you to enjoy them.

Dive Sites

Sydney and NSW Other Dive Information

The best reference book on diving in Sydney and New South Wales is:

Through extensive travelling and diving, authors Graham Willis and Johan Boshoff bring you valuable information on more than 250 dive and snorkelling spots in New South Wales. Guidelines and information on each dive destination include accommodation, facilities, travelling tips and dive conditions.

The best reference book on diving in Australia, inclusive of Sydney and NSW, is:
Dive Australia - A Scuba Divers Handbook (5th Ed)
~~RRP: $58.90~~, Our Price: $56, You Save $2.90 (5%).
Amongst many other things in this remarkable hardcover book of over a thousand pages you will find:
* 553 mono photographs
* 58 colour photographs over 16 pages
* 60 maps, and over half a million words
* state by state descriptions of over 2000 dive sites including shipwrecks, marine life and general terrain, including the type of diving available, be it from shore, boat or off (and under) a jetty, and any concerns that the diver need be aware of.