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Thank you for doing the bench tests... As I said before, there is little difference using the elbows. If you want to get into specifics, Scubapro sells, or used to sell, a 70 degree elbow and claimed that it had no affect on breathing resistance. The rep, who taught my regulator repair...

I use a 40" (or maybe it's 44") hose with a 70 degree elbow for my primary regulator. I have done so for several years now when diving in open water. For cave and wreck, I do use a 7ft hose. I have used Scubapro AIR2s (and other manufacturers' variants of the concept) and even have one on one...

The Deep Dive Specialty is not that difficult to get. As a divemaster, you represent the instructor you teach with, the store you work for and PADI. It looks bad for you to not have a certification in something you may be called upon to assist in (even AOW has a deep dive). Any potential...

What products do you use for disinfecting regulators. One member of our team has suggested Sanizide. Has anyone used this or similar products? What other products might be suitable?

We use the LGS Harness or similar. We add an additional D-ring positioned at the center of the front strap for tether attachment. This way, diver is same distance from tender whether he/she is swimming right or left. LGS Harness

PADI has required compass use for Open Water Divers since before I was certified (25 years ago) and is still taught today. It's in the Open Water Diver manual (and eLearning), again in the classroom, practiced on land and then finally in the water on a checkout dive. So your instructor should...

Diving the shipwrecks around Isle Royale in Lake Superior is a wreck called the Congdon. The shipwreck is in two pieces, with the bow on one side of a reef angled toward the surface and the stern on the other side of the reef. We were in the bow. I was down in the tool room with a DM trainee...

When you say size 11-12... do you mean if someone were to wear them like a normal shoe, or do you mean it would fit someone with a size 11-12 foot and he was wearing his drysuit with neoprene socks and insulating foot liner?

Since he tried to put it back on in a vertical position, he probably put it on (on the boat) while standing straight up, which usually leads to a loose belt. I teach my students to lean forward and let the belt rest on their back so they aren't trying to hold it up as they tighten it... and...

If you want to be a diver or rescue swimmer (the guys that jump out of helos) for the CG, then you have to go through their diving school, and I believe to qualify for their school you have to go active duty for three years minimum (possibly more). See U.S. Coast Guard Diving Program...

It's NOT a diving tool. It wasn't designed to be one. It is not sold as one. Diving is not listed as a potential use for one. It should not be used as one, for most the reason's discussed above. I'm sure it works great above the water, and from the video, it certainly seems you've found...

The most economical setup would be a simple SPG without boot on a short HP hose (22" - 26", er 55cm - 66cm) with a stainless steel bolt snap attached so you can clip it off to your right hip D-ring. This, of course, is assuming that's the way you dive. You can look here-> Submersible Pressure...

Surge is caused by waves passing overhead at the surface. With a wave high enough, the ascent warning will go off as the trough behind the wave passes. You may not think your depth is changing, but the amount of water above you is, and that is what triggers the ascent alarm. I haven't been to...

I have to second the advice to talk to those teams you are interested in joining and find out what training they recommend, what equipment team members are expected to own, and what equipment is provided by the team (and if you can borrow it for outside training). And as someone else mentioned...

Consider what it is attached to... a Hookah system. So I think it is safe to assume it is likely a QD for a breathing apparatus. There are about four different QD connections commonly used for breathing apparatus out there (the standard LP inflator QD does not allow adequate flow for...

Forgive me if this has been asked before, but for those of you that dive steel tanks, do you prefer the shorter fatter (8") tanks or the taller thinner (7 1/4") tanks and why?

Disney's use of split fins probably has more to do with who was willing to provide free equipment and pay the most to advertise themselves as the "Proud Sponsor of the Disney Living Seas Exhibit" than any benefit they though they would get "maintaining a stable environment". The issue for...

I have the DGX as well as a couple of Intova lights - the IFL600, which is a 300 lumen light, and an Ultra, which is a 220 lumen light, either of which is brighter than the home made 50watt halogen canister light I have. and I can't say that the DGX is much brighter than either of them. BUT...

Another thing to do, even if they don't require it, is to give your insurance agent a list of the equipment you have, with serial numbers if possible. If something does get stolen, lost or damaged, the claims processing goes much faster that way.

You must be patient. Just stay in one spot, and keep your eyes open. Look for movement. I have a picture of an invisible shrimp... well it isn't really invisible, but it's shell and tissue a practically transparent... I noticed to tiny gold dots on a sponge... and they moved... and moved...