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See pic below. In cold water regs, there is a metal heat exchanger (see #8 in the pic) and the O-Ring (#9). Both heat exchanger and its o-ring is outside the body of the reg. When the LP hose is screwed in with only one wrench, it can cause the heat exchanger to further turn and tighten -- and...

Be cautious not to over-tighten the LP hose onto the 2nd stage. The recommended standard tightness is 5 Newton-meters (Nm) for most regulators. To achieve this, initially tighten the hose using finger strength and then give it a slight nudge with a wrench until it reaches the point where it...

The stones/rocks are not coral rocks. If you pause the video and pinch-out your screen with two fingers to zoom closer to the rocks, you’ll see that they look like land based rocks or stones. Like from some landscaping project. Some are actually nice looking rocks. Some are smooth, some of...

1. I only teach a max of 3 students per class. Yeah, small size, I know. But this allows me to focus on each student’s needs and ensure they fully grasp the skills. Large class size can dilute learning. 2. Course duration depends on student background. If the student took the OW course with...

See near the end of the video

On December 30, 2023, we dove the Ligpo/Bauan Baura dive site. This is one of the most beautiful and challenging deep reefs in Batangas, Philippines. It’s home to Turtles, Eagle Rays, White Tip Sharks, Frogfish, Jacks and more. We encountered a troubling sight. Scattered across the reef, at...

yes, see my earlier response. I’ve dove with several UK divers. They’re very good. :).

Hi, None of the skills, in the format seen in the video, are explicitly required for AOW certification. However, I choose to teach them in my AOW course due to their significant benefits. Students do not have to demonstrate ability to perform these skills in order to pass the course. One...

No, not required in AOW but I include it in the course. It's not a pass/fail item but my students should at least know the fundamentals and through deliberate practice, they'll eventually get it. Too many divers push on the corals (damaging them) with their hand or use a pointer stick to move...

Within a standard AOW course, numerous skills are taught, yet I prioritize these top four skills as essential for every certified AOW diver. These skills form the cornerstone of my AOW training courses. The execution doesn’t have to be pretty or demo quality. The goal is not perfection...

Yes, you can remove it like a Jacket. Insert left hand inside the left shoulder strap and "chicken wing" your elbow to remove the left shoulder strap. Then with the left hand, grab the right shoulder strap and pull off the entire rig off your right arm and hold it under your body then...

See training standards in the attached message. While the skill has little practical application in the real world except in very rare situations (eg entangled alone), it is primarily designed to teach problem solving, task loading and to train divers to manage and be comfortable with their...

Hi guys, thanks for your comments. BCD Remove/Replace underwater is a WRSTC training requirement for OW. Almost all training agencies are members of WRSTC. The skill is mostly taught in a kneeling position and with Jacket BCDs (a Youtube search for BC remove/replace will show this). The...

Hope this helps someone. WXL1rSq0oTI

6 Tips to improve Buoyancy & Trim

You’ve seen others remove the Scuba Regulator hose from the 2nd Stage or you’ve done this yourself with one wrench. Wait! Don’t do it with one wrench. Use two wrenches. Watch the video and see why. I hope you find this short video helpful. Thumbs if you like it, Subs if the video is helpful...

The traditional way to attach Bolt Snaps to your Scuba gear is by using a cave line (the lines in the spool used by advanced and technical divers). This is good but an alternative and faster way is by using elastic Hair Ties - the Goody (TM) kind. Here’s a short video on how it’s done...

If you have 2 household wrenches and $4, you can fix your leaky SPG by yourself. If your SPG is in a console boot, just pop the SPG out of the boot and do the same fix. I hope this was useful to you. Thumbs if you like the video, Subs if you love it and Click the Bell and get notified of new...

This is a video of my student learning how to do the valve shutdown drill in open water conditions. Not perfect with room for improvements - he is new to Tech Diving and is still learning. He completed the skill in 45 seconds. I hope this video helps other divers entering the technical diving...

Looks like what changed between the old D26 1600 and D26 1600s is the Led. The old one uses the Cree XHP35-HI D4 while the new 1600s LED is the CSLPM1.TG, the same LED as the D36 5800II. The run time on the new 1600s is showing a decrease in Turbo, almost the same on High, but dramatic run...