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Cylinders for warm water and wet suit



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Old 6th July 2008, 15:31   #1 (permalink)
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Cylinders for warm water and wet suit

I have just come back from Red Sea and wasn't particularly impressed with the trim. I was diving 5mm wetsuit, the standard can with an ali plate and 3l Faber (steel) cylinders. I have struggled to stay horizontal and I had to put a couple of kilos on the top of the cylinders to push my head down a bit which just made me overweight.

I have never had a problem in the trim and it was spot on from the day one on my Meg with the drysuit.

Maybe different cylinders would help? I will try Luxfers (ali) 2l or 3l next time I put my wetsuit on or will it by ever more buoyant?
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Old 7th July 2008, 01:39   #2 (permalink)
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Re: Cylinders for warm water and wet suit

I dive a SS back plate with a drysuit and thick wetsuit. I dive an AL bp with 3mm wetsuits. The extra 4 lbs or so difference between the plates makes all the difference for me. I can switch between 2L and 3L tanks with no problems.

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Old 7th July 2008, 02:00   #3 (permalink)
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Re: Cylinders for warm water and wet suit

I was trying out the Meg in the pool a few weeks ago in a 3mm wet suit. I usually use a drysuit (16 lbs of wt) and trim is fine but i will be going to Asia and will use a wet suit so I wanted to see what the trim and weight requirement would be.

With AL BP, 19 cuft(3L) AL DIL and O2, AL 40 cu ft BO and 3mm wetsuit in FW I sunk like a stone. I was also butt heavy. Tanks are the standard inverted mounting. I am not happy with this situation and really do not want too add addtional trim weight as i am already over weighted. So I will be looking at making some adjustments as follows.

1) Remover the Tiger Gear tank mounts to reduce weight and replace them with four regular webbing tank bands.
2) Modify the STA so that I can move the Scrubber higher up my back moving the center of gravity away from my butt.
3) Replace the heavy SP Jets with OMS Slip Streams which are lighter.

And if about does not work I will try...

4) De-inverting the tanks to further shift the center of gravity towards my head.

Any other suggestion would be gratefully accepted.

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Old 7th July 2008, 02:20   #4 (permalink)
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Re: Cylinders for warm water and wet suit

My tropical travel set up for Meg consist of lightweight backplate with drilled holes for attaching the weights(zip ties) and 19 cu.ft ALU cylinders.
rgrds
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Old 7th July 2008, 20:03   #5 (permalink)
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Re: Cylinders for warm water and wet suit

Quote: (Originally Posted by jkaterenchuk) View Original Post
3) Replace the heavy SP Jets with OMS Slip Streams which are lighter.
This got me thinking...given that being butt-heavy is such a common situation on Megs with inverted tanks (including mine), maybe I should trade in my negatively buoyant fins for neutral/positive fins even in cold water?

I have negative fins I've used since OC days and I've just by default used them for drysuit diving on the CCR too. But...maybe not?
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Old 7th July 2008, 20:20   #6 (permalink)
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Re: Cylinders for warm water and wet suit

Have you moved the rig up an inch or two on your backplate if you aren't already on the top hole? I've not had the problem with the Meg, but have had it when switching from Faber to Worthington doubles (or vice versa) that varied in size or switched sets of doubles from drysuit to wetsuit.

The 2 inches of adjustment in the plates that I use has always accommodated.

Paul
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Old 8th July 2008, 00:35   #7 (permalink)
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Re: Cylinders for warm water and wet suit

Quote: (Originally Posted by Twain) View Original Post
This got me thinking...given that being butt-heavy is such a common situation on Megs with inverted tanks (including mine), maybe I should trade in my negatively buoyant fins for neutral/positive fins even in cold water?

I have negative fins I've used since OC days and I've just by default used them for drysuit diving on the CCR too. But...maybe not?
Glad it was useful info. The other good reason is travel weight allowances. Have you ever put a pair of Jets on a scale.

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