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chest pain should always be regarded as serious until proven otherwise. see another doctor.

Assuming you are using the same gear and exposure protection start with the same weight for your first dive and do a weight check at the beginning (allowing for the weight of gas you are carrying) AND the end of your dive.

Yes it is safe to buy used gear. You have to know exactly what you want and wait until it crops up. Should you buy used gear if you do not know what to look out for? Certainly not. I bought three sets of regulators used (all Apeks btw), a Shearwater Predator, backplate, weights, lamp, reels...

What sort of hotel are you looking for? When I dived with Small but pretty meets 5 stars | SUBEX - Diving in Egypt and the Red Sea since 1972 I stayed at the Luxor Hotel just up the dust road. But beware - in spite of the name it is a Egyptian *** B/B accomodation, clean, small rooms but decent...

Maybe the difference between 1.6 and 1.3 bar is not significant, but higher ambient pressure keeps the bubbles smaller :blinking:

First of all, go diving with friends and mentors. Do you want to teach diving? Then Divemaster is the way to go.

If you are in Switzerland as the location in your profile suggests, you might give Uli Mößlang of Optik Heydenreich Tauchglaeser für Tauchbrillen Tauchmasken in Munich a chance. He made my mask three years ago, I am very satisfied.

And they rely on a DM having enough gas at hand in case of an emergency. Of course you can and will get away with hopingall will go well. Dive equipment does fail, it is just a matter of time. I prefer filling half full tanks to the adrenaline rush of performing a CESA :blinking:

The Suunto RGBM penalizes short surface intervals (< 120 min) , deep after shallow dives and rapid ascents. If you are aware of these facts and adjust you dive plans accordingly I am sure it will serve you well for recreational diving.

I have posted this link before but I cannot find it on scubaboard A sense of algorithm - Divernet A comparison of the algorithms used in different divecomputers It shows that the conservative setting in RGBM can increase deco significantly (as it of course should)

I suggest you let him choose his DC himself. There are so many out there and so many different tastes and flavours, you can impossibly find the exact model he wants without asking him (especially as you say he was looking in the $1000 range, so he might want a Petrel - hard to beat that choice...

have a look at the Hollis Ride

I second Ayisha's comment. I have heard this "you look great under water" for some years now since a fellow diver I asked on a vacation what I could improve told me to learn the frogkick instead of bicycling through my dive in 2011. This year I found myself a tec instructor and did an advanced...

As I live in Europe the Red Sea is diving destination #1 but I have been to different regions to dive there and different islands in and countries around the Mediterranean and the Atlantic Ocean. I will be back to the Red Sea later this year

I was lucky enough to encounter dolphins twice in the Red Sea, once near Hurghada and once near Marsa Alam.

... which is included in the box and should be transferred to your save a dive kit together with a spare battery.

I do not know about the Datamax but most Oceanic DCs use the DSAT algorithm (or they let you choose betwenn DSAT and Pelagic Z+ which uses a Bühlmann ZH-L16 table) The Petrel uses the well documented ZH-L16C algorithm with Gradient Factors. Please keep in mind that all these algorithms are...

try it on with the thickest undergarmen you intend to wear. no way around trying it on especially if buying used.

The PADI table gives you a GF of roughly 80/100. As Dr. Lecter has already elaborated, the GF low (the first number in the setting) does not play any role as long as you stay within NDL. So only the GF high comes into play and it will shorten NDL the lower it is set. As a new diver you will...

Thank you beanojones btw: your status line is wrong, you just proved the opposite ;)