For a new diver, buying gear is the final step, the act that says “I’m committed to really enjoying diving.” But if you’re newly certified, how are you supposed to know what to buy?
Between our advice and your instructor’s help, we’ll have you outfitted in no time. It’s helpful to think of buying gear in two phases: first, the basic stuff you need for class; second, the major pieces of life support — regulator, BC and dive computer — that you’re allowed to purchase once you’ve got a C-card. Let’s start with the basics.
The one-pane oval mask of Sea Hunt and those old Bond films is practically a relic. In its place is a variety of styles for a world of faces. Your job: Choose the one right for yours.
What It Does – The mask creates an air space in front of your eyes that allows them to focus under water. The nose pocket allows you to equalize the air pressure in your mask as you go deeper.
What to Look For – A good watertight fit.
Look up at the ceiling and place the mask on your face without using the strap. It should rest evenly with no gaps.
Place a regulator or snorkel mouthpiece in your mouth. Does the mask still feel comfortable?
Place the mask on your face without using the strap and gently inhale through your nose. The mask should seal easily on your face. Caution: A strong inhale will close minor leak areas and invalidate this test.
Repeat the sniff test with a mouthpiece in place.
If the mask is still in the running, adjust the strap and put it on your face. Make sure the nose pocket doesn’t touch your nose and that the skirt feels comfortable on your upper lip.
Put the regulator mouthpiece in one more time to make sure you can easily reach the nose pocket to equalize your ears.
Any mask that passes this test is a potential keeper. You’ll find a whole range of options on masks, including side, top and bottom panes for a wider field of vision. Some also have purge valves for venting any water that leaks in, and others have quick strap adjustments. These options (and a range of color schemes) are a matter of personal preference–just make sure the mask you choose fits right.
Our Advice – Clear or light-colored mask skirts let more light in and are generally more comfortable for new divers.
It seems simple enough: a curved tube that lets you breathe while floating face-down on the surface. Yet, as you look at the giant wall of snorkels at your local dive store, you’ll see an array of options and features to choose from. Stay focused on the basics.
What It Does – As a diver, you primarily use a snorkel to conserve air in your tank when on the water’s surface.
You want a mouthpiece that feels good in your mouth and breathes dry and easy. The problem is, most attempts to keep snorkels dry also make them bulkier and harder to breathe through. The snorkel for you is one with a good compromise between ease of breathing and dry comfort. Remember, the bigger a snorkel is, the more drag it creates in the water.
Also important: how the snorkel attaches to your mask. Look for a durable, yet simple and easy-to-operate attachment.
Our Advice – If you don’t plan on doing a lot of snorkeling, this is the one piece of gear you can skimp on. Get a simple, basic model and be done with it.
Fish don’t have legs for the simple reason that fins are the best way to move through the water. So if you’re going to play in the fish’s territory, you need a good set of flippers too.
What They Do – Fins translate power from the large leg muscles into efficient movement through water, which is 800 times denser than air.
What to Look For – Comfort and efficiency. When trying on fins, look for a snug fit that doesn’t pinch your toes or bind the arches of your feet. If you can’t wiggle your toes, the fins are too small.
The efficiency of fins is largely determined by their size, stiffness, and design. Divers with a strong leg and hip muscles can efficiently use a bigger, stiffer fin. Smaller divers or less conditioned divers will be more comfortable with smaller, more flexible fins. Finally, make sure buckles and straps are easy to use.
Our Advice – Don’t skimp on fins. Choosing the right pair is important to prevent muscle fatigue and cramping. Good fins will enhance your enjoyment of diving; bad ones can ruin it.
What type is right for you? Here’s a look at some considerations to keep in mind when choosing a pair.
Full-Foot or Open-Heel Fins?
Full-foot fins don’t require dive booties and are best suited mainly for warm waters.
The straps of open-heel fins can be adjusted for the different booties you may wear or for different family members and children as they grow.
Open-heel fins require less effort to put on, especially if a pull tab is added to the strap.
The dive booties required with open-heel fins also provide foot protection and comfort while diving and walking.
Form-fitting exposure suits are usually made of foam neoprene rubber (wetsuits) or spandex-like materials (skins), sometimes with a fleece lining.
What They Do – Exposure suits insulate you against the cooling effect of water, which can rob your body of heat 25 times faster than air. The thickness and type of exposure protection you need depends on dive conditions. Simple Lycra suits provide little thermal insulation, but do help protect against scrapes and stings.
Any water that gets inside the suit is going to leak out again. When the water is inside, it absorbs some of your body heat. When it leaves, it takes that heat with it. So the first thing a wetsuit has to do is keep the cold ocean from flushing through it.
A good fit, one that feels equally snug everywhere, is critical, so the space the ocean wants to use to flow along your skin is as small as possible.
A little science here: Solids and liquids conduct heat well; gases do not. Air, for example, is about 20 times less conductive than water. As a practical matter, good insulation — above or below water — is all about trapping air. That’s why neoprene foam works so well.
Gas bubbles are permanently trapped inside the “closed cells” of the wetsuit material.
Some features can help the suit do its job. They include wrist, collar and ankle seals; sealing flaps behind zippers; pre-bent arms and legs; and smooth inner coatings to minimize water flow inside the suit.
What to Look For – Fit and comfort. Exposure suits should fit snugly without restricting movement or breathing. Reject any suit that’s too loose, however. Gaps at the arm, leg, crotch, and neck allow water to circulate and defeat the suit’s ability to prevent heat loss.
Cost – Wetsuits and skins range from $70 to $650. Drysuits can cost from $850 to more than $2,500.
Our Advice – As long as a wetsuit fits correctly, it will do the job. If you’re going the budget route, your choices will usually be limited to basic models. Bright colors and graphics aren’t necessary but do make you more visible to other divers.
Here’s a guide to choosing the right weight for the conditions you dive in.
Once you’re a newly minted diver, the anxiety you had about buying gear will likely be replaced with a rush of excitement — a desire to max out the plastic or convert the Roth IRA into a heap of the latest and greatest in scuba gear.
Fine. Having your own gear is essential to enjoy this sport fully and to maximize your comfort and safety. Just remember that your experience with equipment is limited. You’ve got to study the field and understand what you want — and need — out of each piece of gear.
The BC is the most complex piece of dive equipment you’ll own and one of the most important. So choose carefully based on the style of diving you’ll be doing most.
What It Does – What doesn’t it do? It holds your gear in place, lets you carry a tank with minimal effort, floats you at the surface and allows you to achieve neutral buoyancy at any depth.
Pay particular attention to the inflator hose. Is it easy to reach and extend over your head? Make sure there’s a clear distinction between the inflate and deflate buttons and that you can operate them easily with one hand.
Cost – $350 to more than $1,000.
Our Advice – This is an important piece of equipment that you can expect to use for many years. Don’t skimp; go for quality. Test as many different models as you can in real diving situations before buying. Rent them if you have to.
What It Does – Converts the high-pressure air in your tank to ambient pressure so you can breathe it. A regulator must also deliver air to other places, such as your BC inflator and alternate second stage.
Comfort. Look for a comfortable mouthpiece and have your local dive store select hoses of the right length for you.
Try as many regulators as you can in real-world diving situations. Breathing on a regulator in a dive store tells you nothing about how it will perform under water.
Our Advice – You’ve got to do your homework to find the best regulator available for your budget. Talk to dive store personnel, experienced divers and read ScubaLab’s objective tests and reviews.
Nobody enjoys working the dive tables, but they’re an invaluable tool for safe diving. Dive computers are an even better tool for the same reason a laptop is better than a slide rule.
What to Look For – User-friendliness. The most feature-packed dive computer does you no good if you can’t easily and quickly access the basic information you need during a dive: depth, time, decompression status and tank pressure. Some models have both numeric and graphic displays for at-a-glance information.
Mounting options are an important feature to consider and let you position computers on your wrist, gauge console, hoses or attach them to BCs.
Some computers are conservative in their calculations, automatically building in safety margins; others take you to the edge of decompression and trust you to build in your own safety margins. Only RSD publishes a chart ranking the relative conservatism of dive computers on the market today.
Before you buy, ask to see the owner’s manual and check it out. Complete and easy-to-understand instructions are important, especially on feature-packed machines.
Cost – $300 to more than $1,300.
Our Advice – Begin with an honest evaluation of your diving needs — do you plan to use mixed gases someday to do decompression diving? Study the features of different computers and choose the one that offers the mix of features you need at the best price.
Scuba equipment can be purchased in dive stores, at other retail outlets, by mail order or as used equipment from private parties. There are distinct advantages and disadvantages to each.
Mail order. Catalog buying is a popular and useful way to shop, particularly when some products are not available locally or may be purchased through a catalog for significantly less money (including shipping and handling charges).
Diver life-support products should not be sold to unqualified buyers.
Dive gear should not be sold when operating incorrectly.
Gear should not be sold to a diver without regard to proper fit and function.
Little service or support is available by mail order, and gear that is not purchased locally may not be able to be serviced locally and may have no warranty.
No doubt about it: scuba is a gear-intensive activity. But scuba gear is also built to last. When properly cared for and regularly maintained, your first set of gear can last a long time.
Here’s a glossary to commonly used dive terms.
Aluminum 80 The most common scuba cylinder, so named because it is supposed to hold 80 cubic feet of air. In actuality, it usually holds about 77.4 cubic feet.
Annual The required yearly visual inspection for scuba tanks. Also, a similar checkup for regulators.
BC Buoyancy compensator. Also known as a BCD, or buoyancy control device.
Boot Protective covering on the bottom of a tank.
Booties Footwear for divers.
Bottle Another word for scuba tank.
Console A unit attached to a hose from the regulator first stage for holding and displaying instruments, including dive computer, depth gauge and compass.
Doubles Two tanks linked together for use on a single dive.
DPV Diver propulsion vehicle, an underwater scooter.
Dump A valve used to deflate a BC.
Farmer join Wetsuit pants that extend over the upper body and shoulders (similar to overalls).
First stage The part of the regulator that attaches to the tank and reduces the pressure of the air in the tank to an intermediate pressure.
Free flow An unwanted loss of air from a regulator.
Glow stick A chemical light stick usually attached to the tank valve during a night dive so a diver can be seen in the dark by his buddy and other divers. Also called a Cyalume stick.
Hydro Short for “hydrostatic test.” A pressure test for scuba tanks, performed in water. Required for every scuba cylinder in the U[.]S[.] every five years.
Lead The weights worn to offset a diver’s positive buoyancy.
Mil Short for millimeter, usually used in reference to wetsuit thickness (i.e., a three-mil suit).
Octopus A backup or secondary regulator second stage.
O-ring A pliable ring that forms a high-pressure seal on tank valves. Also used on underwater cameras and other equipment to provide a waterproof seal.
Port An opening in the regulator first stage for hose attachment.
Primary The main regulator second stage, as opposed to the backup or octopus second stage.
Quick disconnect Any one of several different types of fittings that can be used to remove a hose or strap quickly with one hand.
Rebreather An underwater breathing unit that recycles a breathing gas, removing carbon dioxide and adding oxygen.
Second stage The part of the regulator at the end of the hose that includes the mouthpiece. The second stage reduces the pressure in the hose to a breathable pressure.
Shorty A one-piece wetsuit with short legs and short sleeves.
SPG Submersible pressure gauge.