huge loser

Used Scuba Diving Equipment – What kind of regular maintenance is involved when I buy a full scuba kit (including tank)?

If I decide to buy a tank, should I go aluminum or steel? I will be diving primarily in cold, fresh water lakes in canada, and doing perhaps two tropical ocean dives per year, if that matters.

Most of the dives in the large lakes near me are between 50 to 120 feet deep. There are one or two that are approaching 200. I have only gone for 4 dives so far, at 40 feet deep in clear tropical water, what is a safe depth for me to tell the divemaster I am comfortable with?

As I progress, I would like (of course) to attempt the deeper dives, does this mean that I should have equipment that is Nitrox compatable? Is Nitrox used for shallower (50 ft?) dives?

Has anyone heard of TriMix gas? I’m having a hard time finding info this…

Thanks very much for all the earlier answers guys. Went diving the first time down in Cuba a month ago, and I see scuba tanks in my sleep now! Any additional tips?

jvstiniann

Used Scuba Diving Equipment – I saw a diver today at a cove with a tank that was half size. He said he uses it for the shallow reef dives. It look REALLY comfortable. Are these sufficient to do 30 ft dives? I **** all the equipment… I only do easy dives here (SoCal).. Would this be a good option for me?