I am not sure I completely understand the rationale behind donating your primary hose.
The main arguments seem to be:
Basically the arguments can be boiled down to two basic points:
The first point is, where I get kind of confused. Is this the point or am I missing something practical? In one of the DIR videos Irvine says "You donate your primary, because you know it is working". That's great, but what if it turns out the backup isn't working? Why not donate the backup because you know it is working? You need to know both are working anyways.
The only sense I can make of this is, that the system forces you to realise, that your buddy's and your own life depend on each other and to force you to have a working backup, which you can access easily. So its more psychological, than purely practical. Not saying that's bad though.
Basically in a scenario, where my backup is not working, I fail to see the (purely practical) advantage of donating my primary. I am not panicked at the moment I donate and have maybe a couple of seconds to deal with a minor problem, but there is no advantage to simply calm one diver and than panic the other.
It seems the main point is to force you to think of your buddy and to have a working backup. Or is there something purely practical not psychological behind it?
The only other point I can think of is, that you can easily find your mouth and that is the fastest way to donate and since you are not ooa you have plenty of time to look for your octopus / backup, which should be on a strap. But I think this could be solved, you just need to know where your backup is and the result is the same no?
The main arguments seem to be:
- You are encouraged to have a HQ backup regulator, since you donate your primary
- You are encouraged to have a working, serviced backup regulator, since you donate your primary
- You are encouraged to have your backup close by
- You can neutralise your buddies panic faster by donating a guaranteed to work reg, instead of a backup where there is possibility for it to not work
- You will not be surprised if your buddy takes the reg out of your mouth, since you donating the primary is part of the normal procedure anyways
Basically the arguments can be boiled down to two basic points:
- The system forces you to take backup regulators seriously, since your are going to be breathing them, not your buddy. It needs to be as high quality as your main, the backup needs to be easily accessible, etc.
- On a psychological level, you donating your primary has a calming effect on your stressed or even panicked buddy, because there is proof, that the reg is working and has the right gas coming out of it, otherwise you would not be breathing it.
The first point is, where I get kind of confused. Is this the point or am I missing something practical? In one of the DIR videos Irvine says "You donate your primary, because you know it is working". That's great, but what if it turns out the backup isn't working? Why not donate the backup because you know it is working? You need to know both are working anyways.
The only sense I can make of this is, that the system forces you to realise, that your buddy's and your own life depend on each other and to force you to have a working backup, which you can access easily. So its more psychological, than purely practical. Not saying that's bad though.
Basically in a scenario, where my backup is not working, I fail to see the (purely practical) advantage of donating my primary. I am not panicked at the moment I donate and have maybe a couple of seconds to deal with a minor problem, but there is no advantage to simply calm one diver and than panic the other.
It seems the main point is to force you to think of your buddy and to have a working backup. Or is there something purely practical not psychological behind it?
The only other point I can think of is, that you can easily find your mouth and that is the fastest way to donate and since you are not ooa you have plenty of time to look for your octopus / backup, which should be on a strap. But I think this could be solved, you just need to know where your backup is and the result is the same no?