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O-Rings and Lubricants


The Scuba Doctor sells O-rings and lubricants suitable for use in scuba applications. For more information, please see our buyers guide to Scuba Diving O-Rings, or download/view our Scuba O-Ring Sizes Chart (Adobe PDF | 356.37 KB).

Tech Tip:
How Much and Where to Use Lubricant

Some people very sparingly lubricate the SPG swivel O-rings, but you should know that SPG and hose assemblies from our suppliers are never lubricated. If you do choose lube the SPG swivel o-rings, take care not to be so generous that lube might migrate up into the Bourdon tube mechanism and cause your SPG to become inaccurate.

Some people also sparingly lubricate the threads of valves before they are installed in the cylinder neck. Do NOT lubricate the neck O-ring itself, and do not lubricate the valve/regulator seal O-ring or DIN threads.

Most lubricant is used with dynamic seals in regulators and other equipment with moving parts. As a general rule, the O-rings used with static seals in SCUBA applications should not be lubricated at all. The lubricant just causes contamination to stick to the surface of the O-ring and results in more problems with a static seal than any dubious benefit the lubricant might provide.



Melbourne Dive Sites

Melbourne Dive Sites by The Scuba Doctor

Melbourne, Victoria, Australia has some of the most breath-taking marine life you'll want to encounter! Historic shipwrecks, stunning wall dives, temperate water reefs, fast drift dives, thriving kelp gardens, crayfish, abalone, scallops, dolphins and seals. It's all here in Melbourne.


"Melbourne Down Under", edited by Richard Fitzpatrick and Sheree Marris. Footage courtesy of Pang Quong, Richard Fitzpatrick, Dave Bryant and Sheree Marris.

You can see cuttlefish, nudibranchs, octopuses, seahorses, seadragons and stingrays on our world class local pier dives — easily accessible to everyone! In the Great Southern Reef we have a more colourful and abundant reef ecosystem than that of the world famous Great Barrier Reef. 80% of what you'll see here in Victoria is unique to the region. No wonder scuba diving in Australia began right here in Melbourne!

Here are some pages with more details about the diving sites Melbourne has to offer scuba divers. With so many different types of dives, we'll group them for you to make it easier.:

Pier and Shore Dives

  • Melbourne Pier Dives — 10 things you may not know about diving Melbourne's piers, our Best 5 Melbourne Pier Dive Sites, plus details of other pier dives in Port Phiilip.
  • Melbourne Shore Dives — information about the shore diving sites near Melbourne, Victoria.

Wreck Dives

Boat, Bommie, Drift, Reef and Wall Dives

Diving For Crays, Abalone and Scallops

Dive Site Maps and GPS Marks

If you need to hire dive gear so that you can go out and explore Melbourne's dive sites, please check out what we have to offer and make a booking. When you come to the dive shop to get the scuba rental equipment, we can let you know more about the dive sites you're looking to dive.


Melbourne Down Under Water Scenarios | © Pang Quong

Stay Safe Diving in Melbourne

Diving in Melbourne can be challenging, but if you can handle the conditions here, you can probably handle anything around the world. The Scuba Doctor has put together the following guides about certain aspects of Melbourne diving:

We also suggest you familiarise yourself with the SDFV Codes of Practice 2005 (Adobe PDF | 62.35 KB) — Scuba Divers Federation of Victoria general operating guidelines for recreational scuba diving and related activities.


The best reference book on diving in Australia, inclusive of Melbourne and Victoria, is:
Dive Australia - A Scuba Divers Handbook (5th Ed) 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.

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