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Tech Regulators


Breathing is one of the most important things you do while underwater. You should not accept 'good enough' when making the important choice of which first and second stage regulators to use. That is why The Scuba Doctor has chosen to sell only high performance regulators for technical divers for the ultimate diving experience.

Tech Tip: Uncoupling DIN Fittings From SCUBA Valves

There is more to disconnecting a DIN fitting from a valve than you might imagine. Do it incorrectly and you will probably lose an O-ring and perhaps even need to have your regulator serviced. The problem is most pronounced in using DIN fittings on fill whips, and more rarely on first stage regulators. The O-ring popping out of the nose of the DIN fitting is an issue on scuba regulators and fill whip hoses and it is caused by failing to completely bleed residual pressure before uncoupling the fitting.

On fill whips, you can be certain all the pressure is released by opening the bleed and waiting a few extra seconds before starting to unscrew the fitting. You need to wait a moment after the hiss stops, because the bleed hole is tiny and gas will continue to escape even after the hissing stops. Compact ring-style bleeds found on fill whips that twist either direction to bleed are popular because you can't lose the bleed screw, but with this design you must make sure the ring is centred on the bleed opening because if you keep twisting you will close it again with out fully bleeding the hose.

Even when divers are using improper technique to unscrew DIN fittings on first stages, they rarely see the problem because usually they are unscrewing the fitting from a nearly empty cylinder with relatively little pressure remaining. But if the cylinder is nearly full and the diver encounters a circumstance where the first stage DIN fitting must be unscrewed then proper technique can very important. Briefly purging the second stage just once is not enough, residual pressure trapped in the high-pressure hose of the SPG will take several seconds to move all the way back through the regulator first stage to the second stage. You must wait a moment between each time you push the purge and you must do it three times in a row to fully release all the pressure from the hoses. Another equally effective two-handed technique is to continue to hold the second stage purge down in one hand while you begin to unscrew the DIN fitting using the other hand.

DIN fitting designs on regulators use a two or three part assembly in which the threaded component with a hand-wheel collar slides onto a hollow centre post and is retained by a 'nose cap' that contains the sealing DIN O-ring on the front and a smaller O-ring on the back. Improperly unscrewing the collared threads by rocking the entire assembly back and forth, or just using brute force to 'break' the seal can eventually can loosen the centre post and/or nose cap causing a leak or seal failure the next time you try to use the fitting. Sometimes you can 'save-a-dive' by using a hex wrench to hand tighten the DIN assembly, but a loose assembly is nearly impossible to permanently correct in the field and usually requires bench service to be able to fully tighten and lock the assembly back in place.

Proper technique to uncouple a DIN fitting requires you be careful to only turn the collar in the DIN fitting — don't grab and turn the entire assembly. If you can't easily turn just the collar to unscrew, i.e. you have to use force on the the entire assembly to 'break' the seal, then the line is not fully depressurised and you need to repeat the bleed.

Apeks XTX50 Regulator Set | DIN

Apeks XTX50 Regulator Set | DIN

$880.00
Sale: $765.60
Save: (13%)
Mares 28XR HR Full Sidemount Tek Set

Mares 28XR HR Full Sidemount Tek Set

$2,399.00
Sale: $2,087.13
Save: (13%)
Apeks XTX200 Regulator Set - DIN

Apeks XTX200 Regulator Set - DIN

$1,120.00
Sale: $974.40
Save: (13%)
Apeks XTX200 Regulator Set - YOKE

Apeks XTX200 Regulator Set - YOKE

$1,120.00
Sale: $974.40
Save: (13%)
Apeks XTX50 Regulator Set | YOKE

Apeks XTX50 Regulator Set | YOKE

$880.00
Sale: $765.60
Save: (13%)


Snorkelling Holiday Gift Guide 2018

For a more up-to-date gift guide, please see Snorkelling Holiday Gift Guide 2019.

Snorkelling Holiday Gift Guide

Santa Lloyd and his Elfin Assistants are loading up the sleigh and conditioning the reindeer for a rapid delivery of a slew of the hottest snorkelling gifts to give (and get) for this Christmas holiday season! Geoff, Hannah, and Michelle have been bringing Christmas cheer to the dive shop, and then we have Peter in the Service and Repair Centre as our resident grinch.

The Christmas holidays are a time of giving. Many people love gift giving, but there are some of us who struggle to think of the perfect gifts for those we love. We've compiled a list of snorkelling gifts for those people hardest to shop for in hopes we can help you out.

For That Person Who Wants the Newest and Best

  • New Top of the Line!
    Tusa Paragon Mask Tusa Paragon Mask
    RRP: $319, Our Price: $287, You Save $32 (10%).
    The Paragon Mask is the jewel at the top of Tusa's mask range, made with all of the highest quality features that a mask can have. The glass lenses are AR/UV420 for ultimate clarity and protection for your eyes. The Freedom Fit II Skirt ensures the best fit no matter your face shape.
  • All of the Best Snorkel Features!
    Tusa Hyperdry Elite II Snorkel Tusa Hyperdry Elite II Snorkel
    RRP: $91.50, Our Price: $82, You Save $9.50 (10%).
    Combines all of the best features of TUSA's snorkels into one. With a low-profile dry top and angled purge chamber, staying dry has never been easier.
  • Not New But Still The Best!
    Tusa Solla Full Foot Fins Tusa Solla Full Foot Fins
    RRP: $129, Our Price: $116, You Save $13 (10%).
    These full foot fins allow you to get the most out of every kick. The patented 20-degree angle between heel and blade keeps the fin at the optimal angle to boost propulsion.
  • Keep It All Together!
    Trident Deluxe Snorkelling Bag Trident Deluxe Snorkelling Bag
    RRP: $108, Our Price: $97, You Save $11 (10%).
    Room for a mask, fins and snorkel with shoulder straps, carry handle and big front accessory pocket. This is also an awesome underwater hockey gear bag!

Kitchen Sink Sets

For the person who wants it all, these snorkelling sets include everything but the kitchen sink. Choose the colour and then the fin size to match your loved one.

  • 13 Colour Options!
    Tusa Freedom Ceos Platinum Snorkelling Package Tusa Freedom Ceos Platinum Snorkelling Package
    RRP: $426, Our Price: $362, You Save $64 (15%).
    Our best selling Tusa Freedom Ceos Mask, which fits adult small to medium width faces, is combined with a Tusa Sport Hyperdry Elite Snorkel, plus a matching pair of Tusa Solla Full Foot Fins, a matching coloured Tusa Mask Tamer Strap Cover, plus a Tusa Imprex Snorkelling Bag.
  • Think Pink!
    Tusa Solla Serene Pro Snorkelling Package Tusa Solla Serene Pro Snorkelling Package
    RRP: $307.50, Our Price: $262, You Save $45.50 (15%).
    A Tusa Sport Serene Mask, which fits adult medium to large width faces, with a Tusa Sport Hyperdry Elite Snorkel, plus a matching pair of Tusa Solla Full Foot Fins, a matching coloured Tusa Mask Tamer Strap Cover, a Tusa Imprex Snorkelling Bag and a Tusa Mask Anti-Fog Film for a single lens mask.
  • Metallic Red or Metallic Blue!
    Tusa Solla Visio Pro Snorkelling Package Tusa Solla Visio Pro Snorkelling Package
    RRP: $308.50, Our Price: $262, You Save $46.50 (15%).
    It all here! A Tusa Sport Visio Tri-Ex Mask, which fits adult medium to largewidth faces, with a Tusa Sport Hyperdry Elite Snorkel, plus a matching pair of Tusa Solla Full Foot Fins, a matching coloured Tusa Mask Tamer Strap Cover, a Tusa Imprex Snorkelling Bag and a Tusa Mask Anti-Fog Film for a single lens mask.

These complete snorkelling packages deliver excellent performance and superb value.

Mask, Snorkel and Fin Sets For the Kids

Get your kids safely into snorkelling. Please read our How to Familiarise Your Kids to Snorkelling page.

Please check our our full range of snorkelling gear for kids in our Kids' Corner.

Snorkelling Safety

It's easy to overlook basic safety considerations when you go snorkelling. The following products will help your family and friends to stay safe.

Please also read our guide, Snorkelling Limits and Safety Precautions.

Many people are being encouraged to buy full face snorkelling masks. We think they're dangerous. Here's why... Full Face Snorkel Mask Dangers.

Prescription Masks

Know someone who has always wanted to go snorkeling, but never has because they can't see without their glasses? We've got the perfect solution: a prescription snorkeling mask!

  • Medium to Large Adult Faces
    Tusa Sport Liberator Mask with Corrective Lenses -+ Tusa Sport Liberator Mask with Corrective Lenses -+
    RRP: $196, Our Price: $176, You Save $20 (10%).
    Great visibility and low-volume comfort while incorporating a mask skirt that fits most medium to large adult faces. The Tusa Sport Liberator Mask is available in a wide range of negative and positive dioptre corrective lenses, for those that need assistance seeing clearly underwater.
  • Small to Medium Adult Faces
    Tusa Sport Splendive Mask with Corrective Lenses -+B Tusa Sport Splendive Mask with Corrective Lenses -+B
    RRP: $202, Our Price: $182, You Save $20 (10%).
    A low-profile, low volume, two window mask that delivers great fit, comfort and performance. The Tusa Sport Splendive Mask is available in a wide range of negative and positive dioptre corrective lenses, plus gauge reading, bifocal lenses, for those that need assistance seeing clearly underwater.

If you can't go through the process of consulting with the optometrist with your friend, get them a gift certificate to the same value as a prescription mask.

Gift Certificate

The Scuba Doctor Gift Certificates The Scuba Doctor Gift Certificates - $5 to $1000
We all know someone who is IMPOSSIBLE to shop for, or is the indecisive person in your life! A gift certificate is the perfect way to make sure you are giving your friend exactly what they want. Determine the amount you would like to spend, and let them get what they need. You may think they already have all of the snorkelling gear they could possibly need, but they WILL be hankering for something. With a Gift Certificate from The Scuba Doctor they get to choose what's most important to them.

Yourself!

Don't forget to treat yourself! We have a full range of excellent snorklelling gear in-store and online. For more recomendations, please see our What Snorkelling Gear Do You Need page. There's bound to be something you'd like.

We hope you have found this guide helpful for your Christmas and summer holiday shopping!

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tel. +61 3 5985 1700 :: email. diveshop@scubadoctor.com.au :: Web site by it'sTechnical 2022