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Miflex Xtreme LP Regulator Hoses


Miflex Xtreme specialist scuba diving low pressure (LP) regulator hoses are available in over 150 colour, length and fitting combinations from 15 cm long to 210 cm long in ten different colours. The Italian manufactured Miflex Xtreme regulator hoses feature an external polyester safety braiding designed to resist the snags and abrasions that divers can often encounter. Unlike traditional rubber hoses, the double braiding is not simply pushed over the hose fittings. Instead, the braiding is tightly bound and fixed to the hose core by the sleeve. The result is performance and durability in extreme situations. All Miflex Xtreme LP regulator hoses are Nitrox Ready as they come Oxygen Cleaned from the factory.

The flexibility of the Miflex Xtreme regulator hose makes the second stage more comfortable in the mouth and results in smoother hose routing, particularly with long hoses. Available in lengths ranging from 10 cm (4 inch) to 210 cm (84 inch). These low-pressure hoses are great for stage/deco bottles, and we offer the 120 cm (48 inch) length commonly used for stage/deco and octopus hoses in your choice of ten colours: Black, Carbon Black, Blue, Red, White, Yellow, Mellow Yellow, Pink, Green and Purple.

Typical LP regulator hoses, including Miflex Xtreme LP regulator hoses, have a 3/8-inch UNF Male fitting at the end that screws into the first stage regulator LP port, and a 9/16-inch UNF Female fitting at the end that screws on to the second stage regulator.

Choosing the Best LP Regulator Hose Length

"Standard" Setup: The most common hose lengths found on 'standard' primary 2nd stage SCUBA regulator setups (the one on the black hose that's typically in your mouth) is 71 cm (28 inch) or 75 cm (30 inch). The most common hose length found on the 'standard' "Octopus" 2nd stage SCUBA regulator setups (the one on the yellow hose that's typically clipped off or in an occy holder) is 90 cm (36 inch), though some people prefer a longer 100 cm (40 inch) hose length.

For many divers, the "standard" primary 2nd stage SCUBA hose length is too long and will cause the hose to "bow out", and create unnecessary drag and tug on the mouth. This makes for an uncomfortable dive, particularly in current. Some experienced divers and instructors choose the slightly shorter hose lengths of 56 cm (22 inch), 60 cm (24 inch) or 65 cm (26 inch), feeling it is more comfortable with less drag and pull.

Experienced Diver / Streamlined Setup: *** Recommended *** Increasingly we see experienced single tank divers using a 100 cm (40 inch) to 150 cm (60 inch) in length, primary 2nd stage SCUBA LP regulator hose routed under their arm with the regulator on a 20/70/110° or 90° swivel (we prefer the 20/70/110° swivel). We also prefer the 'in-between' 120 cm (48 inch) hose length. Experienced divers figure this is the hose that their buddy will grab, or they will donate, in an emergency, thus it should be the longer hose and black, neon yellow, or yellow in colour. They use a shorter 56 cm (22 inch), 60 cm (24 inch) or 65 cm (26 inch) (we prefer the 65 cm) in length, black coloured LP regulator hose for the backup/octopus 2nd stage regulator they will end up breathing from. In this setup, the backup/octopus regulator is typically hung on a necklace directly below the diver's chin.

Stage Setup: The 100 cm (40 inch) length hose is the common choice for technical diving stage, pony and deco regulators. Different hose colours are often used to make it easier to identify which hose is attached to which breathing gas cylinder.

Long Hoses: Many advanced divers and instructors believe the common hose lengths are too short in out-of-air situations and now use a much longer hose, often 150 cm (60 inch) for those who dive open water exclusively. Many technical divers have adopted a length of 210 cm (84 inch) for overhead environments.

Choosing Your Colour Scheme

With so many colour choices in the Miflex Xtreme low-pressure regulator and inflator/jacket/BC hose line up you are free to create your own unique colour scheme.

Technical divers always donate their longer hose primary 2nd stage regulator, and usually don't colour code either regulator. For sport diving with a streamlined configuration, we still prefer the cover of the primary second stage to be black and the cover of the backup (octopus) second stage to be yellow.

For many years the dive industry has supplied the primary 2nd stage regulator coloured black on a short black hose, and the backup/octopus 2nd stage regulator coloured yellow on a longer yellow hose. Most regulator sets still come like this. This setup is based on the notion that in an emergency you will donate your backup/octopus regulator with the yellow cover and hose to your dive buddy.

Training agencies are now realising that this isn't what happens in real life and are starting to teach accordingly. In real life, in an emergency your dive buddy will rip the primary regulator you're breathing from out of your mouth. Your buddy will thus be on a short hose, and you'll be going for your backup/octopus regulator. Not an ideal situation. Thus the training agencies are now suggesting you should have a long hose on your primary 2nd stage regulator, and a short hose on the backup/octopus 2nd stage regulator you'll be switching to.

For this Experienced Diver / Streamlined Setup we suggest the long hose attached to your primary 2nd stage regulator should be coloured Fluro Yellow or Mellow Yellow. The short hose attached to your backup/octopus 2nd stage regulator should be Black or Carbon Black. But you can also use whatever colour choice you prefer for either hose.

If you stick with the traditional (old fashioned) setup, then the cover and hose for your short hose, primary 2nd stage regulator would be coloured Black or Carbon Black. The cover and long hose of your backup/octopus 2nd stage regulator should be Fluro Yellow or Mellow Yellow. But again, you can also use whatever other colour choices you prefer for either hose.

For stage/deco/pony cylinders we suggest using a Green coloured regulator hose for 90+ percent Oxygen mixes. As for gas mixes greater than 21% and less than 90%, we'd suggest using a Fluro Yellow or Mellow Yellow hose, but just take your pick from the many colours available.



The Saddle, Lawrence Rocks

Reef Dive Reef Dive | Boat access Boat access

Abalone Dive Site Crayfish Dive Site Ideal For Snorkelling Open Water Rated Reef Dive Site Spearfishing Site

Depth: 2 m (6.56 ft) to 10 m (33 ft)

Level: Open Water and beyond.

The Saddle dive site lies in the lee of Lawrence Rocks, at the end of a gully between the north and south rocks. The Saddle offer some good options when you need a relatively sheltered spot to get wet.

The wash through the spillway/saddle (between the north and south rocks) creates some great visual effects and also attracts some interesting fish-life. The platforms and boulders go down to a silty sand edge in around 10 metres. A variety of sponges are a feature of this location.

The Saddle also cuts through the centre of Lawrence Rocks, but can only be entered in very calm weather.

Lawrence Rocks

Lawrence Rocks
Lawrence Rocks
© Southern Coast Charters

Lawrence Rocks are a group of two rocky islets, 6.8 ha and 1.5 ha in area, with an associated reef, 2.4 km south-east of Point Danger, and about 6 km south-east of the city of Portland, on Victoria's Discovery Coast. Geologically, the group is formed from the remnants of an extinct volcano.

This dive location is one of Portland's best with stunning natural architecture, abundant marine life and kelp forests. Underwater there are walls, terraces, caverns, boulder holes, larva tubes and amphitheatres teeming with temperate marine life including abundant numbers of abalone and Southern Rock Lobster (aka Crayfish). Cray pots are often set around the rocks so take care and watch for lines.

In the more sheltered areas in 5–12 metres of water, giant kelp forests provide shelter for huge schools of juvenile fish and colourful invertebrates at the base. The northern side of Lawrence Rocks rises from about 24 metres, but the thin ledge around the island can drop into depths of as much as 45 metres on each side, with 70-metre depths being found on the exposed side. These deeper reef sections are noted for colourful sponge gardens, big schools of pelagic fish and delicate invertebrate animals. Large schools of yellowtail kingfish visit during the summer months and huge southern tuna are also often sighted.

Lawrence Rocks are used as a haul-out site by Australian Fur Seals. Seal hunting was conducted on the island in the 19th century. Dolphins and seals are regularly seen in large numbers and use the shallow larva tubes. Southern Right Whales are regular visitors each spring as they give birth to their calves.

Inside the many underwater caverns there is an incredible array of invertebrate life, including delicate soft corals and colourful gorgonian fans.

Diving Lawrence Rocks

The Lawrence Rocks area will take several dives to cover properly, and local divers have several favourite spots.

On the eastern side of Lawrence Rocks is The Nursery where there are four large caves at 14 metres. One is known as The Cockpit, which has a slot in the roof leading to a small chamber above. It can be entered by divers in suitable weather and can hold up to four divers at a time.
Latitude: 38° 24.280′ S   (38.404667° S / 38° 24′ 16.8″ S)
Longitude: 141° 40.260′ E   (141.671° E / 141° 40′ 15.6″ E)

North Point lies in the lee of Lawrence Rocks. It's a boulder ridge extending off the northern end of Lawrence Rocks.
Latitude: 38° 24.225′ S   (38.403755° S / 38° 24′ 13.52″ S)
Longitude: 141° 40.004′ E   (141.666738° E / 141° 40′ 0.26″ E)

The Saddle is a gully that cuts through the centre of the rocks, but can only be entered in very calm weather with very low swell.
Latitude: 38° 24.331′ S   (38.40551° S / 38° 24′ 19.84″ S)
Longitude: 141° 40.082′ E   (141.668035° E / 141° 40′ 4.93″ E)

Another area is called The Harbour and is a series of gutters, ledges and swim throughs in 7–18 metres that boasts prolific fish life.
Latitude: 38° 24.514′ S   (38.408564° S / 38° 24′ 30.83″ S)
Longitude: 141° 40.136′ E   (141.668938° E / 141° 40′ 8.18″ E)

The wreck of the Emily S is situated only a short distance northeast from the northern end of Lawrence Rocks.

Access is by boat, taking about 20 minutes from the Portland Harbour, Lee Breakwater Road North Ramp or the Portland Harbour, Lee Breakwater Road South Ramp.

Even dive sites on the usually more sheltered lee side of Lawrence Rocks, like The Cockpit, are still very weather dependant. Best dived in good conditions with a low swell with light north or northerly winds. See WillyWeather (Lawrence Rocks) as a guide for the tide times and the height of the tide.

In winter the visibility at Lawrence Rocks can exceed an incredible 40 metres.

Lawrence Rocks supports the largest colony of gannets in Australia, as well as breeding colonies of other seabirds. Species that use the area include the Little Penguin, Fairy Prion, and Common Diving Petrel.

Lawrence Rocks History

The islets were sighted by Lieutenant James Grant on 5 December 1800 from the survey brig HMS Lady Nelson and named Lawrence Islands after Captain Effingham Lawrence.

Abalone Dive Site
Abalone Dive Site
© Mark Norman, Museum Victoria

Divers have the opportunity to catch Abalone at this dive site. Remember your catch bag, legal abalone tool, current Victorian Recreational Fishing Licence, and abalone measure. Please abide by all current fishing regulations if you intend to catch abalone.

See article-catching-abalone for practical abalone hunting advice from The Scuba Doctor, plus melbourne-abalone-dives for a list of other Abalone dive sites near Melbourne.

Crayfish Dive Site
Crayfish Dive Site | © Ian Scholey

Divers have the opportunity to catch Southern Rock Lobster (aka Crayfish) at this dive site. Remember your catch bag, current Victorian Recreational Fishing Licence, rock lobster measure, and cray tags. Once you get back to the dive boat, or shore, make sure you clip the tail and tag your Crayfish as per Fisheries requirements. Please abide by all current fishing regulations if you intend to catch crays. See article-catching-crayfish for practical cray hunting advice from The Scuba Doctor, plus melbourne-cray-dives for a list of other crayfish dive sites near Melbourne. For tips on cooking your Crays, please see article-cooking-crayfish.

Gunditjmara country
Gunditjmara country

Traditional Owners — This dive site is in the traditional Country of the Gunditjmara people of far south-western Victoria which continues over the state border into a small part of south-east South Australia and is bordered by the Glenelg River to the west and the Wannon River in the north. This truly ancient Country extends 100 metres out to sea from low tide and also includes Deen Maar (aka Lady Julia Percy Island) where the Gunditjmara believe the spirits of their dead travel to wait to be reborn. We wish to acknowledge the Gunditjmara as Traditional Owners. We pay respect to their Ancestors and their Elders, past, present and emerging.

 

The Saddle, Lawrence Rocks Location Map

Latitude: 38° 24.331′ S   (38.40551° S / 38° 24′ 19.84″ S)
Longitude: 141° 40.082′ E   (141.668035° E / 141° 40′ 4.93″ E)

Datum: WGS84 | Google Map
Added: 2021-07-23 13:05:25 GMT, Last updated: 2021-07-23 14:17:58 GMT
Source: GPS (verified)
Nearest Neighbour: North Point, Lawrence Rocks, 226 m, bearing 329°, NNW
Portland, Discovery Coast.
Depth: 2 to 10 m.



DISCLAIMER: No claim is made by The Scuba Doctor as to the accuracy of the dive site coordinates listed here. Should anyone decide to use these GPS marks to locate and dive on a site, they do so entirely at their own risk. Always verify against other sources.

The marks come from numerous sources including commercial operators, independent dive clubs, reference works, and active divers. Some are known to be accurate, while others may not be. Some GPS marks may even have come from maps using the AGD66 datum, and thus may need be converted to the WGS84 datum. To distinguish between the possible accuracy of the dive site marks, we've tried to give each mark a source of GPS, Google Earth, or unknown.

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