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I will be in cave country for a few days in the not too distant future, and I am looking for buddies! I will be able to drive up from Orlando from Wednesday March 26 thru Friday March 28. On each of these days I would need to be back in Orlando cleaned up and ready for work by 6PM. The...

So here I am in downtown Houston with the above Mondays off and nothing to do! I can rent a car, and I have my gear, but I am not familiar with the area. Am I stuck, or is there diving? PM or even better post in this thread. Mark Vlahos

Greetings Friends, I will be in Tampa for two weeks and am planning some trips up to cave country during my stay. I will be available to do some cave dives during weekdays, specifically… Wednesday January 24 Thursday January 25 Friday January 26 During each of these days I would be driving up...

Hi Folks, I work on the show SPAMALOT and we are coming to the Ft. Lauderdale area and some members of our show are certified divers who have been inactive for various lengths of time. They will need a refresher course. Due to the rather strange hours we show people work they will almost...

I am located in Orange County close to South Coast Plaza. I would rather breathe Nitrox than Air. My cylinders are presently cleaned for Oxygen Service as is appropriate for partial pressure blending of Nitrox. It is getting close to the time to get the doubles inspected and cleaned, not that...

Hello, I am in New York on business and have Saturday July 15 available. I did not expect to have the time off so I did not bring ANY of my gear. I am staying with a friend on Manhattan (B'way at 102nd). I don't even know where to start looking for a boat. I would need to rent everything and it...

In this thread I linked a couple of files, the links to those files no longer seem to work. I tried to make a new post with new links in it but the upload of the files failed. Thank you, Mark Vlahos

There are about a million different strategies to running. I have looked and I found one I am happy with. First a little background. I am now 45 years old and at 6’ 0” and 216 lbs. I need to work at loosing some fat, and gaining some muscle. When I was in High School I was rail thin and was on...

Lately I have seen lots of posts that seem to have at their root the issue of the volume of gas in one cylinder or another. I have written an Excel spreadsheet that indicates the quantity of gas (described in cubic feet) for each 100 pound increment in cylinder pressure (described in Pounds Per...

Here is a page where somebody has too much time on their hands. Mark Vlahos

Greetings friends, I have been looking for a dry suit for a while. My search has been rather low key as I have not been in a particular rush (renting), and I have been looking mostly on eBay, TheDecoStop, and ScubaBoard. Since this will be my first owned dry suit I wanted to take a different...

I have a few relatively simple questions regarding the breath hold swim requirement for DIR-F. Is the 50 foot breath hold swim requirement to be completed underwater (completely submerged) or on the surface? Is the swim in SCUBA gear or just swim trunks? Is the swim with fins or bare feet? I...

Hi, I currently use Mozilla Firefox and usually open a new window (not a tab) when viewing a thread. In the lower left hand corner of each post is a black (user is off line) or blue (user is on line) box. How does the system determine if any specific user is online at any given instant? If I...

So I got out my singles rig to take a look at it before my planned dive on Thursday. It has been about three months since it has been in the water and about six months since it was last serviced. I have recently gotten a new high pressure tank but since the service the regulator has been hooked...

Hi, I have temporarily (well, for an expected time of about a year) relocated to Orange County. I have Double Faber 95's and would like to use them on local dive boats. The tanks are O2 clean for partial pressure NITROX blending. The tanks are configured with an isolation manifold with DIN...

I had the good fortune of diving with several of you at the Lake Rawlings a couple of times in the last month or so and wanted to let you know some news. Earlier this week I was unfortunate enough to suffer acute appendicitis, which required hospitalization and emergency surgery to remove the...

I had the good fortune of diving with several of you at the little get to gether at Ginnie Springs a few months ago and wanted to let you know some news. Earlier this week I was unfortunate enough to suffer acute appendicitis, which required hospitalization and emergency surgery to remove the...

I am looking at getting regulators for double tanks. I will use the regs in caves and at depths of around 150 feet on air or NITROX gasses. I am not now trained in the use of breathing gasses that contain Helium but I might be someday and I want to consider regs that will not have problems with...

Hi there folks, I am in a bit of a quandry. I am getting more into technical diving, and have replaced most of my gear. You know, trading up in quality from entry level recreational gear, through better recreational gear, and finally into high quality technical gear. For those of you who have...

Hi, I am getting ready to purchase some tanks that will do double duty. I am planning on purchasing 2 AL80's and 1 AL40. The AL80's will be used as back gas for recreational dives and deco bottles for decompression dives. The AL40 may be used as a pony for recreational dives when required by...