Stage

[hork]

I have the 3Liter Aluminium Diliant bottle on my mk6, when i go in drysuit i nedd a lot of air (near the half bottel for one dive )

so i took the air out of a 10 liter bottle to the dry suit.
It works good, 10 bar for one dive.

But is it ok to make this ? are this dangerous because i cannot give the stage away ?

how do this other mk6 divers ?

 

[matt]

I wouldn't think you should need 300L for your suit & dil for one dive

I can't help you with the mk6, but I'd suggest looking into why you're loosing so much gas out of the 3L and only using 100L from the 10...

That means you used 200L, 66 bar in the 3L for Dil. Are you blowing it from your nose?

Matt.

I have the 3Liter Aluminium Diliant bottle on my mk6, when i go in drysuit i nedd a lot of air (near the half bottel for one dive )

so i took the air out of a 10 liter bottle to the dry suit.
It works good, 10 bar for one dive.

But is it ok to make this ? are this dangerous because i cannot give the stage away ?

how do this other mk6 divers ?

 

[rjack]

Put a long hose on the offboard 10L cylinder. Donate the long hose regulator not the whole bottle to a diver in need.

Using 1/2 of a 3L bottle for one dive is A LOT of suit gas. I suggest using your wing more and just generally getting in the hours on your machine, this number will come down as you get proficient but it takes time.

 

[hork]

its near the half of the 3liter bottle because the rebreather need also some, do this other peaple with the drysuit? The dive goes down to 40m and the near a hour.

 

[matt]

its near the half of the 3liter bottle because the rebreather need also some, do this other peaple with the drysuit? The dive goes down to 40m and the near a hour.

I might use half a bottle on a 4 hour dive to 100m.

Otherwise 20 bar for the suit and 20 bar for the dil.

Matt.

 

[Captain Starfish]

How much dil does the cell validation actually use? I've heard they chew through a bit of gas but my sources from that aren't regular 6/7 divers.

 

[jturner]

I have the 3Liter Aluminium Diliant bottle on my mk6, when i go in drysuit i nedd a lot of air (near the half bottel for one dive )

so i took the air out of a 10 liter bottle to the dry suit.
It works good, 10 bar for one dive.

But is it ok to make this ? are this dangerous because i cannot give the stage away ?

how do this other mk6 divers ?

If I understand you right, then yes, it is fine to use your off-board stage cylinder for suit inflation. The bit you are not quite correct on is that you cannot give the stage away - you can but it means you no longer can inflate your drysuit from the offboard stage... but then why would you need to? You buddy has just needed to bailout or go to your reserve gas, so you'll be heading upwards and out surely? Besides, you could still connect you drysuit hose from your on-board (assuming you haven't removed the whip)? Also, you can use a longer hose and carry the stage whilst your buddy breathes off it though this means you'd better stick close together or they'll get very upset with you for leaving them without a gas supply.

FWIW, this is how I supply my drysuit 90% of the time. The only time I wouldn't do it this way is if I have a trimix stage.

 

[moose_grunt]

I'm like jturner. I supply my suit from my stage. I dive an Inspo, which uses standard bc nipples on the MAVs anyways, so all of my stages have a whip. Theoretically, if I have to give away that stage, I'll be getting my buddy's empty, which will probably still have enough in it for my suit. If not, I'll plug in my 50% (also what I'd do if I have a tmx stage).

 

[diverjoe]

this is a dive log showing dil and O2 use

 

[Captain Starfish]

My bailouts are sacrosanct. They are for bailing out, nothing else.

If I'm running strong enough mix to not be able to use the dil for suit, then it's time for a bebby suit inflate bottle which are usually down around the 1.5l mark.

But the bailouts are my parachute. To my mind, using them for suit inflation or extra dil is like cutting circles out of your parachute to use as handkerchiefs. Sure, it'll work, until suddenly you don't have quite enough parachute left and there's one more case of "and that's how I died".

 

[garethingham]

My bailouts are sacrosanct. They are for bailing out, nothing else.

If I'm running strong enough mix to not be able to use the dil for suit, then it's time for a bebby suit inflate bottle which are usually down around the 1.5l mark.

But the bailouts are my parachute. To my mind, using them for suit inflation or extra dil is like cutting circles out of your parachute to use as handkerchiefs. Sure, it'll work, until suddenly you don't have quite enough parachute left and there's one more case of "and that's how I died".

Chris,

With that mentality how did you dive OC when you are constantly draining down your tanks? Easy...you set a minimum gas volume required to complete the dive, once that gets reached you turn around and go home.

Not sure why it is more complex on a rebreather?

A 1.5l suit bottle makes sense for other reasons such as no helium, redundancy, less hoses, more streamlined etc but not convinced gas conservation is one of them.

 

[Captain Starfish]

1. Not Chris.
2. On open circuit I knew at the start of the dive that I was coming back with tanks that needed filling. Now that I have a rig which, normally, only needs small dil, O2 and (possibly) suit air fills, the tight walleted scot/jew/dutchman (take your pick) in me has erupted in full flower and I like having bailouts which never need re-filling

 

[garethingham]

1. Not Chris.
2. On open circuit I knew at the start of the dive that I was coming back with tanks that needed filling. Now that I have a rig which, normally, only needs small dil, O2 and (possibly) suit air fills, the tight walleted scot/jew/dutchman (take your pick) in me has erupted in full flower and I like having bailouts which never need re-filling

1. Apologies
2. Just so I am clear. Your bailouts are not sacrosanct it's more that you don't want to fill them? Fair play either way....pull the ripcord as you please.

 

[Captain Starfish]

I guess a different way of describing it is that, if I'm going to take a bailout for a dive, I take it full. And I can't be arsed topping off 10 or 20 bar of bailout after every day out on the water. So I prefer to arrange things so that I only ever have to top off a bailout if I've used it as a bailout. I have no problems grabbing it if things feel weird or anything, but in the normal course of events I prefer to leave them alone.

 

[rjack]

I guess a different way of describing it is that, if I'm going to take a bailout for a dive, I take it full. And I can't be arsed topping off 10 or 20 bar of bailout after every day out on the water. So I prefer to arrange things so that I only ever have to top off a bailout if I've used it as a bailout. I have no problems grabbing it if things feel weird or anything, but in the normal course of events I prefer to leave them alone.

I don't mind topping off air or EANx bailouts. But topping off mix is a pain unless I'm on vacation near a shop with a good booster.

 

[jturner]

But the bailouts are my parachute. To my mind, using them for suit inflation or extra dil is like cutting circles out of your parachute to use as handkerchiefs. Sure, it'll work, until suddenly you don't have quite enough parachute left and there's one more case of "and that's how I died".

Likewise. But the "parachute" is planned to be sufficient for 150bar in the cylinder, not the 200-220bar they start with. Plenty extra, especially as I use very little suit gas as I run the drysuit quite snug and only take off the squeeze with the inflator. The other bonus with doing this is that I always check in advance of each dive how much I have in the cylinder, as I know I've probably taken a little out of it before. No chance of getting into a habit of thinking "oh, I haven't used it, so it will be full".

 

[Mark Chase]

its near the half of the 3liter bottle because the rebreather need also some, do this other peaple with the drysuit? The dive goes down to 40m and the near a hour.

Use off board suit inflate bottle

I have used a .75ltr bottle suit inflate on 2 X 3hour dives to 70-80m before now so I dont think its the suit inflate thats eating through your gas. Probably diluient usage and wing usage (unless your using dry suit for boyancy control in which case stop doing that as it's a mad way to dive)

 

[Captain Starfish]

unless your using dry suit for boyancy control in which case stop doing that as it's a mad way to dive

Why, please? I find that I'm neutral enough that enough air in the suit to stave off the pinch also keeps me buoyant. I also like enough air in my suit to be able to move the bubble around a bit to adjust trim, and hands-free dumping during ascent is a bonus too.

 

[nickb]

(unless your using dry suit for boyancy control in which case stop doing that as it's a mad way to dive)

Why, please? I find that I'm neutral enough that enough air in the suit to stave off the pinch also keeps me buoyant. I also like enough air in my suit to be able to move the bubble around a bit to adjust trim, and hands-free dumping during ascent is a bonus too.

Quite. This is Mark using OC thinking. Either that, or he dives way overweighted*

It's a bad day if I need to add any gas to my wing unless I'm on the surface and need extra bouyancy.

* I suspect this is also the OP's problem. 300l of diluent for a short bimble to 40m is way too much

 

[CGOUGHN]

(unless your using dry suit for boyancy control in which case stop doing that as it's a mad way to dive)

Really? How so? It's worked great for me these past years. I rarely, if ever, use my wing when diving dry. I either fill my suit from an offboard dedicated cylinder when diving helium, or from my BO. All of this is taken in to account when gas planning for my dives. The only time I use my wing for inflation is when diving a wetsuit, or need the extra buoyancy on the surface. I keep enough air in the suit to remove the squeeze and enough air in my legs to keep my trim works out well.