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Hi Tomorrow i am going to teach a nitrox course and so today i was looking through the inst spec manual and found it to be a bit impractical, 2 eanx instructor guides for example, one apparantly being old with different standards seems abit pointless, standards being incorrect like min age...

technical diving

Hi Everyone I have heard recently alot of questions and statements about tech gear selection and would be interested to know what people are using. If you could post what gear you are using including the brands and models of the gear that would be great. also your qualifications I am mainly...

hi thanks for your reply, i am not exhaling anymore than normal, i think that i should not have to hold it, or altleast i have never had to with any other mask. craig

Hi Everyone Yesterday i bought a hollis m1 mask. i tried it and i did like it but i found some problems with it. everytime i exhaled into it it felt like it wanted to come off and it moved position on my face, yes i tightened the strap. also on the silicone skirt, (the inside one) i found...

Hi Everyone Today i made my first 100m + dive. I was using tables and 2 bottom times, (1 scubapro 330m and 1 uwatec 330m). when i reached 100m the plan was to swim under the hull of a wreck. obviously it is dark under the wreck so i coud not see the times but both ended up at 103m. i dont...

Hi everyone I am currebtly a speciality instructor and i am hoping soon to ger MSDT. i would like to know if EFR student certs count towards the total 25 diver certs required for MSDT. thanks Craig Chamberlain

Hi Everyone I recently bought the scubapro fjord drysuit (trilaminate). my measurements fitted the small size but as there was none in stock anywhere I bought a medium one as I understand that they don't have to fit exact. it came, tried it on, fitted fine. (only a tiny bit big) and I am...

Hi Everyone I am going to buy my first drysuit soon. I am living in egypt and i will be using it in the winter time. i am also a tek diver and will be using it on the deeper trimix dives. The ones that i am leaning towards are the scubapro ones. everdry 4, evertec and fjord. i think that i...

Hi Everyone. I am a TDI Trimix diver and in the near future i would like to do anvanced trimix. i have a manual but i am not sure if it i the most up to date one. i Know that tdi updated their materials (from the ones with the seperate vinyl cover and papr) mne has a normal glossy cover ...

Hi Everyone, I didve technical with a halcyon evolve wing and bp . i have mc the storage pack but find that when i attach it to the plate then i can not set up my gear by having access to the wingnuts to hold the twin set. any help? craig chamberlain

Hi Everyone I am interested in getting some more infomation about different technical diving organisations. I am certified as a TDI trimix diver. On all of my TDI certs since i did the course in Egypt is says TDI MIDDLE EAST, also i have found that there is a seperate TDI website and one for...

Hello everybody i was just thinking about diving with colds and coughs and wanted some opinions and clarification. so, obviously diving with a cold should be avoided due to equalisation problems and reverse squeezes. now diving with a preductive cough (from the lungs bringing up phlegm) should...

Hi Everyone as i am doing my idc and ie very soon i was wondering if any one has or could direct me to a place with some old/mock standards exams. cheers craig chamberlain

i simply asked theese questions out of interest. i do know the basic dive theory and i must say that my inwater training was great. i simply posted some of theese questions out of curiosity as to what other people would answer. if any body would like to ask and theory questions i would be...

Hi everyone. I have just purchased v planner for 72gbp and have been having a bit of a play about with it. i was just wondering why some of the deeper stops have deco stop time in seconds for example 00:40 instead of just putting 1 minute. it would be almost impossible to time seconds with...

hi so i have had v planner installed on my computer but now my trial has expired and i checked the cost and it is £60. Since i may change my computer i was wondering if there is anyway to get it on disk so if i change pc i can reinstall it? cheers Craig Chamberlain

i am tdi adv ntx, deco proc, and er

ok -- so, i do understand the phsics of diving but as they must be 15, 12, 9, 6, metres i do not understand - surely 14, 11, 8, 5 does the same job? and i think that the cns clock is not used practically to dertimind best deco gas? and no i am not diving trimix.

Hi I am a TDI extended range diver. i have some questions about decompression and decompression stops or more accurately the physics behind them. 1) Why when making a deco stop must you remain at 9m for example and not 8.5m for example? Surely when you are at 8.5m you are off gassing just as...