Quote:
| Originally Posted by Padowan OK, to play devils advocate here, I can think of 1 situation when you might be better keeping things permanently equalised - here it is:
You are diving valve shut - you have 1 tank drained more than the other, perhaps by 50bar or so. You have a catastrophic failure of a neck O-ring or something which means you lose a whole tank of gas - and this is on the tank which was fuller - you now only have the less pressured tank. If you were running half a turn open, you'd have the same pressure in each, but this also implies that the pressure you lose shutting the isolator is less than the pressure "gap" that you have between the 2 cylinders.
Personally I think this is SO unlikely I'd take the risk. Also bear in mind I should have a buddy who should have a bit of spare gas, which should more than make up for the defecit.
So NO vote for the half a turn crowd, just a possible, but very unlikely event that might give you a benefit other than convenience. |
Fair, but I find I can isolate before I'm going to lose more than 10 bar. It literally takes a second. Any doubt, I isolate, and start shutting down valves.
My criticism was of someone breathing one down a LOT, and then a major failure screwing you up. Obviously you guys will have to open and close at least every 50 bar, personally I'd want it to be more often.