Quote:
| Originally Posted by lawrence Fill costs are not an issue- this is for work. They're intended fro 90m dives. However we'd also use them for very long bottom times at shallower depths, where for us they'd have the advantage of simplicity over twins + al80 of bottom gas- we want to just drop down, do the work with as simple a configuration as possible. |
I used to use twin 20's, hence the reason I built my rebreather. They are feckin' heavy, forget getting back in a boat with them. Even taking them off in the water is a nightmare to haul them back up. On a cave diving trip to France a few years ago it took about 40min of absolutely knackering effort to haul them up a 3m pitch. You're looking at around 50kg fully rigged.
Lovely balance in the water though.