Autor: dmartincastro

ENG I´m a dive instructor teaching at Windhoek Underwater Club, in Namibia. I have ample experience on teaching, from Open Water to Technical Diving, including most specialties, creating even one of my own (Limited Visibility Diver). After diving for years I found that some basics of diving are unknown for most divers. This blog intends to help divers, experienced or not, to understand better some aspects of diving. ESP Soy un instructor de buceo que enseña en el Windhoek Underwater Club, en Namibia. Tengo una amplia experiencia enseñando todos los niveles, desde básico hasta buceo técnico, incluyendo la mayor parte de las especialidades. Incluso cree la mía propia (buceo en visibilidad limitada). Después de años de buceo he observado que la mayor parte de los buceadores desconocen algunos básicos del buceo. Este blog pretende ayudar a los buceadores, con experiencia o no, a entender mejor el buceo

Deco stops for non tec divers (emergencies)/ Paradas de descompresión para buceadores recreativos (emergencias)

14 mayo, 2016

English, Español sigue tras el texto en inglés One thing that I do not understand from PADI is that, unless you do any kind of technical diving course, you receive very little information (or none) about decompression and how does it works. Even instructors are not taught how to react if they go into deco. … More Deco stops for non tec divers (emergencies)/ Paradas de descompresión para buceadores recreativos (emergencias)

Choosing a recreational computer / Elegir ordenador para buceo recreativo

9 mayo, 2016

English, Español tras el texto en inglés When there are too many choices it´s always difficult to choose. And this thing is specially true with computers…too many brands and too many models. If you look for advise for which is the best computer, you will not get it here. Here I will only talk about … More Choosing a recreational computer / Elegir ordenador para buceo recreativo

Before choosing a rebreather, think about yourself / Antes de escoger un rebreather, piensa en como eres

1 mayo, 2016

English, Español sigue tras el texto en inglés As you know, there are lots of different models of rebreathers in the market, and which one to choose depends mostly on your personal preferences and what is available in your area. It´s always good to have other teammates diving the same unit so you would have … More Before choosing a rebreather, think about yourself / Antes de escoger un rebreather, piensa en como eres

Enriched air: how and when to use it (nitrox)/ Cómo y cuándo utilizar aire enriquecido (nitrox)

30 abril, 2016

English, Español sigue tras el texto en inglés Normally I would say that an Eanx certification should be mandatory for all divers at one point. And, in fact, most divers I know have eventually done the course. However, even though it´s somehow explained in the course, lots of divers doesn´t know when or how to … More Enriched air: how and when to use it (nitrox)/ Cómo y cuándo utilizar aire enriquecido (nitrox)

Diving against currents with bad visibility (or how to adjust bearings to currents) / Nadar contra corriente con mala visibilidad (o como ajustar la dirección a la corriente)

22 abril, 2016

English, Español sigue tras el texto en inglés. If by any chance you have to dive against a current with bad visibility, then you are in a really bad situation. Any other decision instead of swimming against the current is more desirable (like ascend and end the dive). If the visibility is good, then you … More Diving against currents with bad visibility (or how to adjust bearings to currents) / Nadar contra corriente con mala visibilidad (o como ajustar la dirección a la corriente)

How to dive against currents (in good visibility) / Cómo bucear contra corrientes (con buena visibilidad)

21 abril, 2016

English, Español sigue tras el texto en inglés First of all, you should have a very good reason to dive against a mild or strong current. If not, it´s better to let you go, ascend and call the boat to pick you up. If you are an instructor, some tips about how to do an … More How to dive against currents (in good visibility) / Cómo bucear contra corrientes (con buena visibilidad)

aSCR: the best rebreather for recreational diving / aSCR: el mejor reciclador para el buceo recreativo

16 abril, 2016

English, Español sigue tras texto en inglés A few years ago, Draeger presented the Dolphin, Atlantis and Ray rebreathers, three aSCR (active semiclosed rebreather) that were quite famous for a few years. Then, new CCR arrived to the market and little by little they faded. Some divers transformed some of those rebreathers in mCCR. With … More aSCR: the best rebreather for recreational diving / aSCR: el mejor reciclador para el buceo recreativo

Emergency Oxygen provider: how to make O2 provider a valuable course after rescue / Proveedor de O2 de emergencia: como hacer un curso interesante depués del rescue

10 abril, 2016

English, Español sigue tras el texto en inglés You wouldn´t be the first student I have that, for some reason, after doing the Rescue Diver course, have to do Emergency O2 provider. And, if exercise 9 of PADI rescue diver has been done properly, considers that Emergency O2 provider doesn´t give much more usable information … More Emergency Oxygen provider: how to make O2 provider a valuable course after rescue / Proveedor de O2 de emergencia: como hacer un curso interesante depués del rescue

When to leave connected the LPI to your secondary wing / Cuándo dejar conectado el inflador de tu ala secundaria

3 abril, 2016

English, Español sigue tras el texto en inglés I´m pretty sure you know cases where the auxiliary LPI was connected, it started inflating the auxiliary wing accidentally, provoked a runaway ascent and killed the diver (unfortunately, we had one case a couple of years ago in South Africa). Also, you may know cases in which … More When to leave connected the LPI to your secondary wing / Cuándo dejar conectado el inflador de tu ala secundaria

Sidemount for instructors and divemasters: carriyng extra gas / Sidemount para instructores y divemasters

28 marzo, 2016

English, Español sigue tras el texto en inglés It may sound radical, but sidemount system is the prefect system for guiding and teaching scuba diving, beyond the Open Water diver course. At Open Water level instructors have to demonstrate to the new students and new divers woudln´t feel confident if the instructor is diving in … More Sidemount for instructors and divemasters: carriyng extra gas / Sidemount para instructores y divemasters