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  1. USMC

    Another DIVE Shop closes it's doors. :(

    Is this an Opportunity? Maybe a few local divers can buy the store and keep it alive. Hire Berry as a PT consultant, this will help the customer base learn the new team while keeping the face of the existing in place.
  2. USMC

    Understanding the math behind partial pressure blending

    Glad you got the answer(s) you were looking for. My college Algebra instructor quoted Barbie - "Math hurts" Many thanks for the compliments for those that requested the file...
  3. USMC

    Who is going to the Long Beach Scuba Show - June 8-9, 2013

    Planning on being there...
  4. USMC

    Understanding the math behind partial pressure blending

    Thanks Yes it can start with any mixture and finish with any of your choosing. Took some time to get the formulas correct, but it works well. This is a starting point and the final mixture still gets verified after each fill. I offered it in another trend for anyone to use, (send your email in a...
  5. USMC

    Understanding the math behind partial pressure blending

    This ^ math is why I wrote the spreadsheet, it even gives the ability to use less than 100% O2 that I get from my OxyGen.
  6. USMC

    Understanding the math behind partial pressure blending

    I wrote a spreadsheet to figure it out. It's just too much math to do on a calculator. It comes down to how much 100% to add to get 32% of total tank volume, I start with 400 - 1000 Lbs in the tank to limit the increased pressure needed.
  7. USMC

    Critique my homebrew PP blending whip

    Not all my tanks are DIN capable so I must stay with a Yoke setup. I did order a true Yoke adaptor to replace the paintball fill end. I also decided that I am going to fill from the two storage tanks (on the right in the pic) and then use the OxyCon to re-fill them. This way I fire up the OxyCon...
  8. USMC

    New fill station thread

    This looks to be a top notch setup. If it will help, I have 6 tanks that you can practice on... LOL
  9. USMC

    Medical Oxygen Generator for small volume Nitrox?

    Its all metal except for the gage. I cleaned it out and ran O2 through it at a low rate for 20 mins before putting it under pressure the first time. I've done three PP fills with it so far without a problem. I know it only takes one but the chances of a fire or explosion even with non compatible...
  10. USMC

    Old diver getting back into it.. new to the forum! Howdy all!

    Welcome to SB... I was dry for longer than you were, I recommend taking a refresher course. So many things have changed/improved over the years that time in the pool gets you refocused and up to speed.
  11. USMC

    Diving in Lake Havasu?

    I am assuming you know that this area is accessible only by boat. Do you have a boat available? When did you plan on making the trip? If you need someone to dive it with you I would be willing to join you depending on when.
  12. USMC

    Diving in Lake Havasu?

    I have never dove there but did further down river in the Yuma area backwaters. Senators Wash, Squaw Lake, Mittry Lake... I'm sure you could find some cool things in Copper Canyon but it would have to be during the week or you might get hit on the head with an anchor. The channel that the london...
  13. USMC

    Medical Oxygen Generator for small volume Nitrox?

    I already had the OxyGen and Homefill II for my glass blowing hobby so I put together a new whip for PP blending. Here's a pic of my setup.
  14. USMC

    Critique my homebrew PP blending whip

    Here is the set up I put together today. Already had the parts on-hand... Ignore the laundry pile please...
  15. USMC

    Critique my homebrew PP blending whip

    That makes perfect sense. I have been filling my torch tanks for a while so that part (whip) I am not much concerned with. I just need to clean the adapter (post whip) for my "yoke end attachment".
  16. USMC

    Critique my homebrew PP blending whip

    I have a "T" and a "K" tank I fill myself with a Homefill II compressor and OxyGen that produces 95% clean O2 for medical use. I have it for my glass working torch. I may try this and PP blend my own tanks that are already cleaned. How do you calculate the amount of O2 to fill? Seems simple...
  17. USMC

    Military Members Roll Call

    USMC 78-93 SSgt 7011, 6367 & First RPV External Pilot. National Guard 94-2005 SFC 77F & 88M. Retired in 2005.
  18. USMC

    Do not dive at Guanaja Island Club

    You get a gold star for sure. Accidents happen all the time, however, bad plans produce bad outcomes and sometimes serious injuries. One "Oh S&&t erases 10 attaboys"...
  19. USMC

    Hello from Southern California

    I'm near Palm Springs.
  20. USMC

    Pinnacle Freedom 2 Drysuit

    I am looking for a dry suit, this looks like a great deal but I am at the upper limit of the Small... What size boots?
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