Inspo - reversing loop direction, what have I missed ?

curator

Hello All,
I've got a classic inspiration that I need to have the O2 on the left hand side (left for the wearer that is). So what I've done so far is fit the O2 cylinder on the left side and crossed the Manual add and HP hose over to the right behind my neck. By doing this I havent upset the inspiration principle of having Dil in ithe inhale lung minimizing possible O2 spikes when flying manually.

The only problem is that the crossed hoses are untidy, bulky and a little short.

Thinking today, I realized that I could reverse the whole loop (inhale from the right and exhale to the left).
I'd do this by:
DSV - Kiss BOV mushroom valves swap straight over -no problem.
Bob Howell ADV swap left to right - no problem
Cylinders swapped - no problem
Hoses now run to the lungs on the same side - much neater
Scrubber rotates 90ish degrees so LH loop hosegoes to the exhale connector - standard, flow through scrubber is not changed
Dil and O2 manual add buttons swap over with hoses, so everything is correctly marked.
The only point I can think of is that the over pressure exhaust valve would now be on the inhale lung not the exhale - can fit a new valve an block the old one off.

Diving - brief my buddy that the whole system is opposite to his. (probably better than having half the system swapped as now).

Sounds too easy, so .......Question - What have I missed???

Thanks for your thoughts

Curator

Simon A

there is someone who mod's the counterlungs to make them detatchable, surely it's easier to get this mod done (£60 AFAIK) and then just clip the counterlungs on the other side?
HTH
Simon A

tony30

Scrubber rotates 90ish degrees so LH loop hosegoes to the exhale connector - standard, flow through scrubber is not changed

Does this all mean your lid is upside down?

stoebs

Just curious - why do you "need" the O2 on left hand side?

Chris

narked at 90

yes so why do you want to swap it round?
brent our colleague at GRP services makes a quick release counter lung but more your problem is going to be with the head turned over you put the one of cells the directly at the bottom of the cell tube, you will possible get pooled water on the cell face.
kind regards john routley
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bourskov

Hi...

I don't know about this, but in my (silly ) head, rotating the canister is not upside down... Normally the hose from the buttom of the canister is going out on the right side (seen from behind the unit, as far as I remember), and by rotating it 90 degrees, this hose will be on the left side of the canister instead... No turning upside down, no sensors at the buttom....

But I could be wrong

Cheers
Bo Urskov

NB: I also have one question: WHY reverse it?!

narked at 90

sorry but you are wrong on a number of pionts the scrubber will be rotated 180' at the moment the cells are aranged around a tube and in the normal possition and in the prone diving possition the cells are not directly at the bottom of the cell tube(in the prone) but rotating it will put one cell directly at the bottom of this tube in prone.possible alowing condisate to run into the cell.
kind regards john routley

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jradomski

I have to agree with with john on some points and you on others.. I wouldn't say its 180degress but the idea is right (the tube is not directly on the side when positioned it is turned in about 30degrees..) and a 90degree rotate would put it in about the same position on the other side.. a 180 rotate would put it on the other side but away from the body..

I don't have a classic head with me right now but a 90 degree rotate would put cell #1 in the cell #2 position (on top in the prone position), cell #2 is now where cell # 3 was, to the side and safe, but cell #3 is at the bottom of the tube (diver in prone position) where water can collect..

(the numbers could be swapped 1,2,3 may be 3,2,1 I dont remember the exact orientation)

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Joe Radomski
CCR Trimix Instructor Trainer
ANDI Instructor Trainer Director #10

All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.

cramerdn

Yes I am curious too.

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bourskov

Hi John...

I see your point... I havn't thought about the actual position of the sensors inside the head... Thanks...

Cheers
Bo Urskov