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I Think your GUE instructor will tell you why you should wear your deco bottle(s) at your left side. Maybe he will let you dive with a deco bottle at your right side if you really want. But If he/she let you dive with a deco bottle at the right I know what will happen... Your buddy will have 2...

It’s hard to fill in this poll. I’m diving since 2014. I have a lot of regulators (10). I have regulators which I bought second hand and which were still working without problems 4 years after servicing. But I also had one argon regulator which had a problem with internal pressure 1 month...

(Werner Lau diving center next to Lido Sharm Hotel Naama Bay in Sharm el Sheikh. I was there in november.) But there are a lot of good (and bad) dive centers & hotels in Egypt.

DIR-diver.com - Singles, H-valves or doubles? This is also my opinion.

Why do you think GUE forbid to use single tand and a dual fist stage setup? "Students may use a single tank/cylinder with a single- or dual-outlet valve." https://www.gue.com/files/Standards_and_Procedures/GUE-Standards-v9.pdf Appendix A

In 2015 I did a dive with doubles inside the wreck. This is an old video when Benji Schaub was still diving. Too bad he doesn’t dive anymore :-(. His company CGT also doesn’t exist anymore :-(.

I didn’t bring or need a snorkel at the east coast. Keep your regulator in your mouth. That will be much better to prevent inhalation smoke of the rib engine(s).

In 2019 I did run the Rotterdam marathon. When I finished the marathon in april I tried to do as much trainingdives with doubles and 2 stages as possible. In may I went one week to France for cavediving. I did one dive a day. That was enough for me. The longest (and deepest) dive was 138...

For the first dive I would use ean32 as backgas and use oxygen for safety stop. But it’s not even a deco dive for me. Or I would bring doubles ean32, bottomstage ean32 and a decostage filled with oxygen and do longer bottomtime. Using air as backgas and bringing 2 stages for deco doesn’t make...

That’s only theory. I have seen 200/232 bar tanks in Mexico with 300 bar valves. Aluminum 80 cft stage with 300 bar valve. A set of doubles with a 200 bar + 300 bar valve. I do have 200 and 300 bar Scubapro regulators. When I pick 2 sets of doubles and 2 stages for 2 dives it’s important to...

I don’t think adding more equipment is the solution for all problems. if you’re diving with an y-valve and loosing one second stage, do you think that would be better in this situation? You’re loosing a lot of gas. Now you should identity the failure and choose the right valve to close. If...

What kind of gasplanning would diverse use for this dive? When I would start with 210 bar in my doubles (or two side mount tanks) and 210 bar in my stage I would start the dive with my bottom stage. I would drop the bottom stage at the line at 110 bar. Backgas I would reserve gas for my bottom...

I think it depends of the divers. your gas won’t be disappeared in a few seconds. If you see that your buddy has a problem you shouldn’t wait till he is out of gas. You should give him a regulator before that happens. Every diver should monitor his own air/gas and do a gasplanning before the...

When your buddy is out of gas during a tech dive, it would be good to grab the regulator in your mouth. That gas he could breath. If your buddy just grab a regulator he can have oxygen (max depth 6 meter to breath). Breathing deco gas at the bottom can kill your buddy.

(We can have a long discussion about what is safe for a dive to 45 meter/150 feet.) (I would do the dive with 2 x 12 liter backmount with 21/35 trimix and 1 x 11 liter stage with ean50 for deco. I would have a buddy with the same equipment. Both would at least be gue tech1 trained.) (But I do...

I don’t want my buddy behind me. I want him/her next to me. If there is no reason I don’t ask my buddy if he/she is ok. In a cave I want to see the light of my buddy if he/she is behind me. I will check if my buddy is still there for every 15 seconds or something like that. But with really...

Cave 1 is just 2 tanks. I have never seen an isolator failure. I have seen regulator failures. I have also seen a lot of free flowing regulators. If there were a lot of problems with isolators I was probably diving sidemount or independent doubles. But there are (almost) never problems with...

Maybe you and a lot of other (rec divers?) don’t like the message. Off coarse you can learn a lot of an experienced diver. But This isn’t only about learning from an experienced diver. Have you ever done a 165 feet/49,5 meter wreckdive ? There is a reason the gas switch isn’t done that way...

Did you forget your light which was almost destroying the coral ?

I did change my mind. I will bring a spare computer which is in my pocket. I will do that both for tech and rec dives. In 2018 I had 2 tech dives without backup computer/bottom timer when my computer failed. This year there was one dive were my buddy his computer failed. For me a bottomtimer...