A Simple Upgrade That Can Save You $$$!

A Simple Upgrade That Can Save You $$$!

Eye Opening Results Over a Two Year Period With The Aqualung ACD

The auto closure device (ACD) on Aqualung systems has been around for a while but getting it fitted now, in the long run can save money and reduce the risk of failure for the more forgetful/lazy divers amongst us. I’m sure most divers at some stage have rinsed their regulator off after a days diving and forgotten to put the dust cap in place. The ACD system is a simple upgrade that can save you the worry of damaging your valuable 1st stage.

More Damage Than You Think

If you’ve let clean fresh water into your first stage then simply letting it dry before you use it again should avert any problems. If you’re using a rinse tank that other divers have already used then for sure there will be some salt in the tank. Overtime this will damage your system. Not only can it cause corrosion inside your first stage but your entire system. Corrosion in the pressure gauge is of great concern and can result in false readings or the needle sticking completely. Frequently tapping your finger on the gauge during a dive is a good habit to get into.

How Does It Work?

It’s a one way valve that is opened only when the first stage of your yoke valve is firmly attached to your tank. Mechanical pressure from screwing your first stage onto your tank depresses the ACD and allows for a normal gas flow, when you release your first stage after a dive the ACD will automatically seal the first stage and keep 1 bar of pressure in your system so no water or other contaminants can get in. The upgrade kit is now available for all Aqualung first stages, it simply fits onto the inlet of the first stage.

Aqualung 1st Stage With ACD

Aqualung 1st Stage With ACD

The Benefits

No water or contaminants can get into your system during rinsing or storage. Your regulators will maintain peak performance for a longer time, the first stage will retain its internal lubrication longer, reduces the chance of damage and false readings on your pressure gauge and is safer for nitrox use. Quite a list!

What We’ve Found

2 years ago we fitted half of our 40 school regulators with the auto closure device and the result has been quite staggering. The year before fitting the ACD we had to change 20 pressure gauges. After fitting ACD just 5 had to be replaced all on the non ACD fitted regulators. There was also a huge difference to the inside of the first stage, the regs fitted with ACD were pristine and only needed hand cleaning, the non ACD regs as usual needed ultrasound cleaning to remove oxidisation. Needless to say we’ll be converting all of our regulator sets to ACD at the next service.

Price

In Thailand the ACD converter retails at THB 3,000 (US$85). Roughly the same price as a new pressure gauge. So if your service engineer gives you a disapproving look when you hand over your regs this simple device maybe the ideal solution for you.

By Justin Hartrey

I've been enjoying the incredible marine life in our oceans for over 25 years. 13 years ago I became a PADI professional in Phuket, hoping to introduce as many people as possible to the incredible beauty of the seas.

Having been fortunate enough to dive all over south east and especially Thailand, I enjoy sharing my diving experiences and passion on this blog.

Originally from Bristol in the UK, I swapped the frigid waters of the North Atlantic for the warm tropical seas around Thailand and can confidently say that I wouldn't go back

Posted in Equipment We Like on .

Popular Services

Similan Island Liveaboard MV Sawasdee Fasai

MV Sawasdee Fasai Similan Island Liveaboard

Free nitrox and a large dive deck make MV Sawasdee Fasai a great choice for your Similan Island liveaboard adventure. At 37m long and nearly 8m wide this large steel hulled vessel comfortably takes 26 divers in 13 cabins. All cabins are air-conditioned and all except the budget cabins have en-suite bathrooms, even they have two bathrooms to share between the 3 cabins. The two master and four deluxe cabins are on the main deck and the four [...]

Find Out More
myanmar liveaboard mv smiling seahorse

MV Smiling Seahorse Myanmar

If the the Mergui Archipelago wasn't remote enough for you, the MV Smiling Seahorse only takes 16 guests on its fabulous Myanmar trips. It's very likely that you'll not see another scuba diving liveaboard on your Myanmar safari that can last from 7 to 9 days. After a 3 year hiatus due to covid and civil unrest, MV Smiling Seahorse will once again be visiting the wonderfully isolated Myanmar dive sites. For 8 years the team have been explo [...]

Find Out More

Daily Schedules

M/V Kepsub Schedule

Jobs @ Local Dive Thailand

Local Dive Thailand is one of Phuket's fatest growing & most vibrant scuba diving operations, we are always looking for quality staff to join us, so feel free to have a look at our jobs listing page.

Job Listings

Contact LDT

Local Guides, Local Knowledge, Local Experiences

Don't trust your diving to amateurs or freshly minted dive guides, dive with local experienced experts from Local Dive Thailand. Our Scuba Diving Phuket Tours will take you to see the rarest of the rare critters, you will be amazed by the macro life our guides can find, in the secret places only they know. To put it in perspective, if you were going to climb Mount Everest you would certainly hire a local sherpa to lead the way & keep you safe. Diving is similar because there is absolutely no substitute for local experience & local knowledge, Local Dive Thailand's guides are Phuket's Sherpa's of the Andaman Sea!

Learn More About Us

Scuba Diving Phuket, Phi Phi & Thailand

When talking about Scuba Diving in Phuket, you should believe the hype, many seasons we have had Whale Sharks grace us on our regular and easy to reach dive sites and on a good day you can add Sea Horses, Sea Moths, Snake Eels, Frog Fish & Octopus to what you can see on any given dive and so much more. If we are heading to Phi Phi Island for the day, you can possibly see Hawksbill Sea Turtles and Black Tip Reef Sharks, also don't forget the King Cruiser, 84 meters of beautiful wreck and the most amazing reef nursery for fish and nudibranch. Local Dive Thailand day trip tours to these locations are not to be missed when you are scuba diving Phuket, get in touch with us and book an 'awesome' day of diving.

Book Your Day Trip

Related News From Local Dive Thailand

See why we are Thailand's leading scuba diving Phuket tour provider, stay up to date & watch out for news & special liveaboard offers!

Whale Shark in Phuket Rare & Peculiar Critters

It’s International Whale Sharks Day But What Do We Know About Them?

Well we know whale sharks are big and spotty but not a great deal else to be honest. It's a challenging animal for scientists to study. They're trying and we're slowly gaining an insight into the biggest fish on the planets life. There is a way that you can help which we'll touch on later. There's much debate about the size to which they can grow. 18m is a common figure that's mentioned but the largest verified measurement is around 12 [...]

Read Full Story
reef-friendly-sunscreen-reef-repair Scuba Diving Health

Why Reef Safe Sunscreen?

We all know that our oceans are under siege, big time! Some of the issues facing our oceans are difficult for us to solve, some require a complete life style change. The good news is that there is one thing we can all do from the comfort of our computer screens and that is changing the type of sunscreen we use. Actually it's a no brainer if you are a scuba diver. Why is changing your sunscreen a "no brainer" for divers? Well that is bec [...]

Read Full Story
blacktip reef shark at koh bid nok Rare & Peculiar Critters

Blacktip Reef Sharks

Blacktip reef sharks are a very frequent sighting on our Phi Phi diving tour, often with many sharks in your field of vision. We get all different sizes from the almost 2m adult females to the tiny pups. We generally schedule Koh Bida Nok for our first dive on the trip so blacktip reef sharks are one of the first animals you'll see. A great start to your days diving. They're not a guaranteed sighting by any means but it's very unusual not [...]

Read Full Story

Local Dive Thailand Office In Phuket


Find Us On Google Maps