INFORMATION ABOUT PERSONAL DIVING
EQUIPMENT USED AT DSDC
This is a very interesting subject
with a huge number of opinions surrounding it. The
comments are meant to be helpful for new members just
arriving in the region or newly qualified divers in
particular.
We strongly suggest to any new member
that you hold off purchasing expensive diving equipment
until you have dived with us a few times, have a look
around at what people have got, heard the stories etc and
then be able to make your own informed decisions
Equipment Consists of;
Computers, Regulators, Tanks,
BCD/Wing/Clothing/Torch/Reel/Fins/Mask. At DSDC there are
various trends appearing in equipment purchase and use and
these are noted below as well.
Computers; A big
subject in its own right with lots of talk on how or how
not each model is profile conservative. Members have all
sorts of different makes and variations and generally
purchases are being made on the depths of any individuals
pocket. My observations to date are that 99% of problems
occur when users don't fully understand how their computer
functions and what various screen messages mean(and
blaming the computer for being rubbish). A number of
models have a habit of switching back to 21% after every
dive and this is a pain when most of DSDC dives are Nitrox
based. Air integration is a very nice feature to have on a
computer but the normal diver in DSDC will quickly work
out that it is a very expensive feature for the sort of
diving we do here. Being able to change a battery yourself
is very handy as some models have to be couriered to the
UK/USA to have the battery changed and it costs a lot to
do this. Multi gas functions are very useful if you think
you are going to develop your diving with many advanced
divers using a decompression mix to give that extra bit of
deco safety given the cost of recompression in the region.
Regulators,
Another big subject due to the choices that can be made.
Nitrox compatibility is a must and you should watch out
for the recent change in DIN fitting in the UK and Europe
that we have not followed in the rest of the world.
Serviceability in the region is a question you should ask
yourself as some makes will have to be returned to UK/USA
for repair. Reliability is more a question of you washing
it rather than the choice of model itself. A feature at
DSDC is the increasing use of 2 metre plus hoses for the
octopus by the wreck divers who realise that it is very
difficult to exit a wreck sharing air on a standard length
hose. A-clamp users are known to suffer from blowing
o-rings on the surface when the equipment gets very hot in
the summer.
Tanks, At DSDC
we are about 50/50 on the alloy - steel question. Views
vary from the risk of steel corrosion to the pain of alloy
tanks that float when empty. 12 / 15 ltr is the normal
choice in terms of size with 10ltr being a tad too small
for the normal dive profiles being done. Nitrox clean
should be obvious and see regulators above for a comment
on A-clamps. WP is either 207 or 232. Some people have 300
bar tanks but the club cannot fill to this. Decompression
stages are 5 or 7 ltr alloy. Nobody uses the 3 ltr bail
out ponys which are so popular in the UK.
BCD / WING .
This is a really interesting question. Ill add my view on
this subject that you get what you pay for - my BCD is 22
years old, still going strong and I am very fond of it in
spite of all the abuse i get! Thereafter there is
the question of what you can afford and if you have a few
quid should it be a BCD or a Wing. Look out for the
difference between a single skin item and a double skin
item, the wrecks in particular are VERY abrasive. It is
known that moving from a BCD to a Wing and trying to get
your buoyancy right can be tricky and made worse by the
choices in back plate material i.e. heavy stainless or
light alloy. Having had a few mixed comments don't assume
a wing is the best thing to have even if you can afford
it. Check out the pocket sizes of your choice to ensure
you have places to put your dsmb and lift bags etc.
Integrated weights is a choice only you can make, look at
the various options. One word of caution for potential
wreck divers, these lever inflator devices mounted on the
side of some makes of bcd need a VERY careful assessment
before being purchased.
Clothing, There
are stingers and jelly fish in the region, mostly
appearing in Spring and Autumn, and you can get very nasty
burns across arms legs face etc if you get caught up. From
this perspective clothing becomes a requirement plus the
seasonal variations. Generallyl Summer = rash vest and
shorts, Winter = wet suit. Other features to consider - a
hood is very nice in the winter months, 3 mm or 5 mm
thickness wetsuit in the winter. If you are climatised to
the hot weather here 5 mm wetsuit or maybe even a
dry suit in the winter. Gloves are a personal choice, if
wreck diving there are loads of sharp edges to watch out
for. In summer some divers use whole body rash suits and
some have swimming hats or similar to protect the head
inside wrecks. Shorty wetsuits appear in the transition
seasons.
Torches, Have
you got all day? Well i have not so here goes. The LED
variants of torches are slowly taking over but do you
really like that harsh white light they give off? If you
do there is a big advantage as LED does not chew through
the batteries. If your buddy shines it in your eyes,
however, it really hurts. On the bigger LED torches there
seems to be an issue with heat from the LEDs and im not
yet certain if this is properly solved. Thereafter - your
first thing is to look at how many batteries a torch has
and what size they are - this is a good clue as to how
bright its going to be. Many models advertise their lumen
out put and this is really interesting as for example my
torch pushes out 1200 lumens and costs AED 1000 while if
you go for these nice looking tecky torches you will find
that while you get military grade materials AED 6000 wont
get you much more than 900 lumens. Once you have worked
out this issue of brightness then you have to make a
choice based upon what your target use for the torch is.
As a dive instructor you will find me telling people to
take some sort of torch on every dive to ensure you get
the underwater colours, after that the advice would be to
get as big as you can afford. Wreck divers, a back up or
even two back up torches is a must.
Reel / DSMB / Penetration Reel.
There are different sorts of reels
and DSMB each for a different purpose. This is one area
where I recommend you borrow / ask before purchase. The
pitfalls are high speed unwinds with DSMB - finger reels -
you have to be very careful about using these with DSMB's
pulling out of your hand and or tangling up is very easy
and therefore can cause big problems. The same goes for
some of these very nice technical reels which cannot cope
with a high speed unwind. However, finger reels and
technical reels, maybe with a gorman handle, are very nice
inside wrecks when lining off and you don't need to be an
octopus to use for such purposes. To give you an idea I
always carry two sorts of reel. On the DSMB front the is a
huge number of choices including a 10ft monster that you
can get at Scuba Dubai. Note that a reel and DSMB for EACH
diver is a requirement at DSDC. When making your choice
consider, colour (important for surface visibility), size
for both visibility and storage in your pockets, filling
method - some you blow in, some have their own bottle,
some you fill from your air sources. For penetration reels
- come on the DSDC wreck workshop to find out why this is
a subject in its own right.
Fins / Mask /.
This is a very personal area and there are so many
variations in design, colour and materials that it is
difficult to comment. Heavy duty old style jet fins are
very popular with the wreck divers and the technical guys
due to the wear factors involved, otherwise its up to you
and your pocket.
Knives / Shears.
What can you afford and what risks do you face - two
considerations for you - the sea is very salty here in the
gulf so corrosion is a problem - consider a knife with a
removable handle so it can be washed properly, plus
fishermen use these nasty monofilament nets and having
found and removed an enormous one that completely covered
the Zainab i would advise that you have a BIG sharp knife
or a little knife AND shears.
Surface Flags,
these items are starting to appear among the more
experienced divers who have noticed that in some sea
conditions, especially the rougher, it is not easy to spot
a DSMB as it is too low in the water. At the moment i
would say this is a personal choice as long as when at
DSDC you put up your DSMB BEFORE you leave a wreck site.
If you are drift diving on Mussandam think again.
Surface Whistles,
A sleepy Dhow trip support boat
driver led to two DSDC divers being swept 5km and on the
surface for 90 mins before being picked up. Would a
whistle have brought better attention? Some of the
inflator mounted ones are very loud. While we now put a
diver in the support boats because of this instance it
could possibly happen again if you are with a different
group.
Lift Bags, at
DSDC we are fed up with anchors getting stuck on wrecks so
the last pair of divers sends the anchor up on a bag to
avoid this hassle, thereafter bags are very useful
for picking up other boats abandoned anchors - you should
see how many we have at our club house! Advanced Divers in
BSAC can do lifting as part of their training and will
need these things, thereafter its a personal choice noting
that some of the heavy duty bags are very bulky and don't
fit nicely into pockets. A 25kg bag seems to be the size
of choice at the moment.
Reef Hooks,
These are used for Mussandam Diving when you swim to the
edge of an island fighting against the current and when
you cant get any further you hook into the reef and float
there watching the marine life wizz by. Watch out for them
in the shops as they get snapped up very quickly.
Lobster Hooks and Spear Guns - NO NO
NO NO NO - not with SCUBA in the UAE or OMAN
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