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rjack321's Recent Activity

  1. rjack321 replied to the thread Steel Tank Condemned: Cracks in Threads?.

    Same I happen to think these are tool marks, but their jagged nature is still worrisome and there is no shame in condemning this tank....

    Oct 30, 2020 at 1:41 PM
  2. rjack321 liked AfterDark's post in the thread Steel Tank Condemned: Cracks in Threads?.

    If this were a submarine part it would be X-rayed and either wet magnetic particle checked or liquid penetrant checked. The X-ray would...

    Oct 30, 2020 at 1:39 PM
  3. rjack321 replied to the thread Hydro RIN ID marking is a "?".

    I had no idea Norris scooped up both PST and Worthington. Must have been some fire sale

    Oct 30, 2020 at 5:14 AM
  4. rjack321 liked couv's post in the thread Hydro RIN ID marking is a "?".

    ;-) I used to work for Roland's son (also named Roland.) He told me his father "taught" him how to dive in Lake Pontchartrain by...

    Oct 30, 2020 at 5:12 AM
  5. rjack321 liked captain's post in the thread Hydro RIN ID marking is a "?".

    Before DOT began issuing 4 digit identifiers to hydro testers they could use any symbol they wanted as an identifier. In this case the...

    Oct 30, 2020 at 5:11 AM
  6. rjack321 liked Scared Silly's post in the thread Hydro RIN ID marking is a "?".

    I can't remember when but BITD the RIN number was not stamped as part of the re-qualification date. That changed in the mid 80s???

    Oct 30, 2020 at 5:09 AM
  7. rjack321 liked Anthony in NC's post in the thread Hydro RIN ID marking is a "?".

    You're talking PROOF MARKS, not re-qualification stamps. Luxfer uses the arrow, Asahi the "circle Asahi", Metal Impact the "MI", Norris...

    Oct 30, 2020 at 5:08 AM
  8. rjack321 liked captain's post in the thread Hydro RIN ID marking is a "?".

    Be that as it may but there are no RIN's on my requalified tanks prior to about 1985. I have some tanks that are ICC 3AA not DOT 3AA....

    Oct 30, 2020 at 5:07 AM
  9. rjack321 replied to the thread Wing lift requirements .. Help...

    18-20-22lb single wings are mostly paired with 3-5mm wetsuits in the tropics For 7mm wetsuits with more compression and drysuits 28-40lb...

    Oct 30, 2020 at 4:58 AM
  10. rjack321 replied to the thread Wing lift requirements .. Help...

    22lbs is on the small side in a 7mm wetsuit, although its hard to tell how much neoprene that actually is. Only 13lbs of lead suggests...

    Oct 30, 2020 at 4:25 AM
  11. rjack321 liked PfcAJ's post in the thread DIR- GUE Input and Advice on my GUE Training Path and GUE Courses.

    I’m seeing nothing about actually going diving and enjoying it. Just classes. you don’t need a to be in a class to dive Monterey. Or a...

    Oct 30, 2020 at 3:20 AM
  12. rjack321 replied to the thread Overfilling LP108s?.

    The lp108s are the preferred tanks for SM (in caves). Both are negative in freshwater, but the 108 slightly less of a brick and they...

    Oct 29, 2020 at 9:08 PM
  13. rjack321 liked PfcAJ's post in the thread Holding a safety stop - the effect of breathing/weighting.

    Just breath normally. deep breaths don’t do anything to help offgassing.

    Oct 29, 2020 at 5:06 PM
  14. rjack321 replied to the thread DIR- GUE Input and Advice on my GUE Training Path and GUE Courses.

    What were you <expecting> to get out of Rec2? Rec2 is AOW+ for students who took Rec1.

    Oct 29, 2020 at 4:43 PM
  15. rjack321 replied to the thread DIR- GUE Input and Advice on my GUE Training Path and GUE Courses.

    I would just take a conventional AOW class from a decent instructor so you have the card if you need it. You don't need Rec2 and its a...

    Oct 29, 2020 at 4:26 PM