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What Changes Would You Make to A Meg?



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Old 9th February 2008, 21:04   #71 (permalink)
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Re: What Changes Would You Make to A Meg?

Quote: (Originally Posted by Dave Sutton) View Original Post
Not to hijack but?

I know I'm not alkways the most diplomatic, but..... here's an observation: A new guy who had potential to become one of our valued members has left the party, and the best we can say is "don't be a pussy"? That's uncool.... Let's send him a dozen PM's asking him to participate, and just try to be welcoming, OK? Let's send the guy a load of green and make a point to formally invite him back? I already did. Be a friend to make a friend.

Side mounts coming... Armadillo?

Dave
Well said Dave, we need new imformation, and not insults.........

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Old 9th February 2008, 22:12   #72 (permalink)
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Re: What Changes Would You Make to A Meg?

What Changes Would I Make To My Meg?

1. I'm thinking of putting a shutoff on my O2 injection hose. I would do this by running a single O2 line up and over the shoulder into a Y-block. Out the bottom of the Y-block, a short O2 line would continue to the Manual O2 Addition Valve. Heading back up out of the Y-block would be the shut-off followed by the O2 injection hose.

My Reasoning: A simple easy to grab shutoff mirroring the ADV shutoff on the other side to facilitate a quick solution to a stuck open solenoid. I've practiced the closing of the tank valve on a regular basis, and three things make this difficult for me with inverted tanks. 1. I dive a Cave Meg, so the can is shorter and; therefore, puts the valves further up my back and harder to reach. 2. I dive the rig mostly in a drysuit which cuts down on arm mobility. ...and 3. I'm working on pumping up my biceps to Jessy Ventura size, so that limits my mobility even further. Ok, that is a complete dramatization, but you get my point. I don't want to de-invert my tanks because the trim of steel 13's with the valves at head level would suck, suck, suck!

2. I want to add a bailout valve. I'm not sure why CCR's are NOT designed around this, IMHO, very important tool. I'm actually waivering between a Golem BOV and a Draeger FFM with BOR.

My Reasoning: Well, this is simple. I've obviously practiced this maneuver of bailing out quite a bit. I've also had to bailout a few times for real. Guess what? It never works quite like practice when the brown stuff is flying. Incapacitation can hit you like a Mack Truck. Making it easy and quick is my motto here. Enough already said on BOV's in other threads.

3. I like Padipro's O2 injection rerouting via the 90-deg. I may have to use a swivel though if I implement number 1 above.

My Reasoning: I don't like that bend in the hose either, and I don't have the tall 19cf tanks to protect that hose from sharp metal inside the wrecks. I know, I know! More swivels!

4. I got rid of the CL attachments that came with the Meg. I have two small SS snap bolts attached to the top of the back plate with bungee to clip to the top CL D-rings. I added a D-ring to the top loop of my crotch-strap where the belt slides through and use double-enders to hold down the bottom of the CL's.

My Reasoning: I hated those stupid plastex clips. I like the SS. Also, the bungee at the tops gives some built in stretch and pull for various exposure suits. Also, having the bottoms of the CL's pulled into a V towards the crotch works better for the dynamic roll control (for me anyway), and seems to place the CL's over my own lungs, which is probably where they belong in the first place.

5. Neoprene and cordura loop covers.

My Reasoning: Keeping the loop as warm as possible can't be a bad thing. I had a set (all be it too short) of 2mm neoprene covers custom made to warm the loop. I'll probably have a set of 3mm longer covers made in the near future. I had the shop use the neoprene that doesn't have all the bubbles in it, so the bouyancy didn't really change. I use the short Golem cordura covers over the neoprene on the back hoses for abrasion protection, since my tanks are too short to provide any real protection.

6. Curved Slate Primary Controller Mount with dual bungee

My Reasoning: I mounted the controller to a second layer on the DR arm slate with zip ties. That layer flips open to reveal the lower slate which has info like PO2 flush values for my DIL. It stays down with a small square of industrial velcro. The strap that came with the Meg allowed the controller to slide around my arm and I've created some more value with this mounting.

7. Diver Identification on the bottom of the can. I first applied three 3" reflective letters for my initials to the bottom of the can. I then used an industrial clear film used for motorcross bikes over the whole bottom of the can to protect it. Works great! I also covered the Meg decal on the can with this same film to protect it.

My Reasoning: I am easily identifiable to any diver following, and the reflective decals really make me stand out in low vis environments.

8. I would like to see a bottom-timer and depth gauge in the handset controller so I can scrap my Scubapro bottom-timer. This is a silly oversight IMO.

9. I'm still looking for the perfect 40lb wing that works well with a Cave Meg. I'm planning on buying the ISC Wing when I can get my hands on one.

10. Shearwater Head. This is on the wish list. I really like what I see there and what I've heard from others. APECS3.0 is still vaporware at this time, so this may be the next or first best thing for my Meg. I currently use a VR3 with VPM.


This is my list for now. It seems to change monthly, but these are the things that have made it onto my rig or are in the works. Hope that answers the original posters question.

Eric
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Old 9th February 2008, 23:00   #73 (permalink)
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Re: What Changes Would You Make to A Meg?

Quote: (Originally Posted by mempilot) View Original Post
What Changes Would I Make To My Meg?

1. I'm thinking of putting a shutoff on my O2 injection hose. I would do this by running a single O2 line up and over the shoulder into a Y-block. Out the bottom of the Y-block, a short O2 line would continue to the Manual O2 Addition Valve. Heading back up out of the Y-block would be the shut-off followed by the O2 injection hose.

Eric
Eric; I would discourage this idea. I know I'm a stupid jerk, bad apple, etc, etc, but I have survived errors in the past with the tank valve. Inserting a shut-off invites more of the same. Please don't red blob me more than I already have been.

I have well bicep'd arms and understand your limited arm mobility (observe the excessive bungee length in above pic of me), but if you can operate a twin set, you should be able to operate de-inverted tanks on your rig.


Quote: (Originally Posted by Dive!Dive!) View Original Post
Guys
Been looking at Gilles photos. Interesting. I currently have my CL attached at the bottom with bolt snaps on bungy through the crotch strap. I'm thinking that my harness straps are too long (dry suit diving so they have to be longer!) to do it the way Gilles has - the end of the counterlung is still far away from the plate.
Question - if you have the CL attached to the harness with the 3 rear velcro tabs on each side , do you actually NEED a bottom attachment ?
Obviously if I do that I cannot get at my harness D-rings - so could I clip the bailout bottles to the bottom D-rings on the lungs (assuming I dont sidemount) ?
I'm trying to think of reasons why this wouldn't work .......
Cheers
Steve
As mentioned and brilliantly illustrated twice above by others, my first recommendation to anyone is to sidemount.

The CL attachment is a personal pref allowing me to squeeze through smaller restrictions. Doesn't matter if the lung is far from the plate. The idea is to get the lung away from the belly area. When sqeezing through holes with sharp, pointy, rusty edges, my belly (not the CL's) get scraped.

Quote: (Originally Posted by lancsman) View Original Post
Why is it that we feel we have the right to tell other what to do? This and many internet forums use very direct language which not everyone appreciates, we should encourage, not insult.
Where was the insult? Perhaps I was a little poignant, but coaching the poor chap about the reality of life and Rebreather World is a lot more respectful than patronizing him with false politeness. Get a bit of thickness on your skin man.

Somewhere high up above on this very thread, when I was more of a newbie, I had to endure a personal insult. Did I go home and bawl to momma! No, I cooled off, picked up and went on with life. Grow up.

Quote: (Originally Posted by Gilles) View Original Post

The post is about factory changes to the stock Meg. It (the Meg) is designed to be altered almost any way you want and I know of at least a dozen ideas posted here in Rebreather World. Get off your and search. (no offence intended)


Some links for your convenience.

http://www.rebreatherworld.com/bail-...tml#post167361
http://www.rebreatherworld.com/megal...cootering.html
http://www.rebreatherworld.com/megal...on-my-meg.html
http://www.rebreatherworld.com/offic...effective.html

the list goes on...not to mention what's in the library.
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Old 9th February 2008, 23:31   #74 (permalink)
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Re: What Changes Would You Make to A Meg?

Gilles,

I agree that operating a set of de-inverted tanks would be the same as a set of OC twins, but my steels are not de-inverted, but inverted. A Cave Meg can is quite a bit shorter than a standard Meg, and all that shortness is taken from the butt end of the can. With the tanks positioned all the way down to where the valves/1st stages nearly touch the concrete while sitting idle still place the knobs very far up my back. Ever tried to put suntan lotion on your own back? Can't easily hit that mid back region, eh? Standard Meg owners don't experience this phenomenom. As I said though, de-inverting would solve this problem but throw my trim all to hell.

Eric
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Old 10th February 2008, 03:09   #75 (permalink)
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Re: What Changes Would You Make to A Meg?

Quote: (Originally Posted by Dave Sutton) View Original Post
Not to hijack but?

I know I'm not alkways the most diplomatic, but..... here's an observation: A new guy who had potential to become one of our valued members has left the party, and the best we can say is "don't be a pussy"? That's uncool.... Let's send him a dozen PM's asking him to participate, and just try to be welcoming, OK? Let's send the guy a load of green and make a point to formally invite him back? I already did. Be a friend to make a friend.

Side mounts coming... Armadillo?

Dave
Well said Dave, PM sent.
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Old 10th February 2008, 04:35   #76 (permalink)
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Re: What Changes Would You Make to A Meg?

Quote: (Originally Posted by Gilles) View Original Post
Eric; I would discourage this idea. I know I'm a stupid jerk, bad apple, etc, etc, but I have survived errors in the past with the tank valve. Inserting a shut-off invites more of the same. Please don't red blob me more than I already have been.
I am not so sure about this.......There are a lot of benefits in being able to isolate the solenoid in the event of a failure. The most obvious benefit is you can leave the O2 tank valve open and manually add O2.......Making the remainder of the dive a lot less stressful.

I got a beaut little shut-off from Rasmus and it screws into the O2 first stage and the hose screws into it. It operates very much like any other flow stop and is made of metal and no plastic. It works a treat and is a lot easier to operate than I first thought. In the beginning I was a little worried I could accidentally bump it and isolate the gas but it has never happened. All is needed is to just do a quick operation check when you open the O2 tank and it's good for the dive.

Cool idea to have the primary controller mounted onto a folding wrist slate....Definately food for thought there!!!

The other question I wanted to ask is do any of you use the Armidillo (or similar) side-mount system when wreck diving from a boat and what method do you use for getting in the water with it or clip the tanks on in the water?

With the tanks clipped off to D rings I am always have to hold the regs up when penetrating and finning close to the bottom in order to keep them out of the way, hence buying the Armidillo. Now all I need to do is work out the easiest way to put it all together before descending.

Regards,

Lance
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Old 10th February 2008, 06:10   #77 (permalink)
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Re: What Changes Would You Make to A Meg?

Quote: (Originally Posted by Lancer4545) View Original Post

The other question I wanted to ask is do any of you use the Armidillo (or similar) side-mount system when wreck diving from a boat and what method do you use for getting in the water with it or clip the tanks on in the water?

With the tanks clipped off to D rings I am always have to hold the regs up when penetrating and finning close to the bottom in order to keep them out of the way, hence buying the Armidillo. Now all I need to do is work out the easiest way to put it all together before descending.

Regards,

Lance
Once you figure out where to set the butt clip on the tank, and your bungee length(s), you will find don/doff very easy. Might take some time and practise. Make your bungee a bit too long at first, and shorten it as you start getting the hang of it.

In a strong current/rough conditions I install 2 80 cufts no problem and jump in. In a small rocking boat I just jump in holding both stages in hand and nose clipping them to waist until I get to the down line (in challenging conditions). Once I get past the ripping current/etc, I then mount them taking about 15 sec per tank. Every other circumstance I know of is easier.

Bummer no diving today.
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Old 10th February 2008, 06:17   #78 (permalink)
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Re: What Changes Would You Make to A Meg?

What Gilles said about the Armadillo

With 3 stages (2xs80+ 1xs40) -I manage (barely) to sit on small rocking rib, and put it on myself. Sometimes I need a bit of help, or I also go for option n.r 2. -> Nose-clip, jump in, fix on the way down..

Dry-suit and dry-gloves complicates things a little bit!

Easiest is of cource to put it on in the water when seas are calm.

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Old 10th February 2008, 06:37   #79 (permalink)
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Re: What Changes Would You Make to A Meg?

In addition to the Armadillo sidemount, and CL fastening, the following illustrates the remaining mods I have made to my Meg

1) De-inverted tanks solved by butt heaviness (or empty headed-ness, whichever shoe fits).

2) The system has OC access to onboard O2 & dil, and offboard bailout, all through the BOV.

3) ADV shut-off moved to the offboard connect to isolate bailout if needed. I see little need to isolate ADV unless there is a real problem with it.

What remains is learning to use and installing a drysuit to the system, when I get relocated to The Netherlands in a few weeks.
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Old 10th February 2008, 06:46   #80 (permalink)
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Re: What Changes Would You Make to A Meg?

Quote: (Originally Posted by Gilles) View Original Post
In addition to the Armadillo sidemount, and CL fastening, the following illustrates the remaining mods I have made to my Meg

1) De-inverted tanks solved by butt heaviness (or empty headed-ness, whichever shoe fits).

2) The system has OC access to onboard O2 & dil, and offboard bailout, all through the BOV.

3) ADV shut-off moved to the offboard connect to isolate bailout if needed. I see little need to isolate ADV unless there is a real problem with it.

What remains is learning to use and installing a drysuit to the system, when I get relocated to The Netherlands in a few weeks.
You're going to love your new manifold when you get it fitted up and get rid of all those Y pieces!!!

Lance
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