Thanks to all of you, RebreatherNut, jepuskar, jradomski, Lake_Tahoe_Diver, sfldiver (Adrian) and Fun Under Pressure (Markku) for your. welcome messages.
Jradomski, I'm in Caracas so if you have additional information about rebreather divers here please send me a PM or something, I will appreciate it.
Adrian, thanks for the links, I will PMs they.
Thanks again to all of you
Greetings
Daniel