A few weeks ago, I was on a trip in FL. I spent 4 days doing 6 pretty agressive decompression cave dives (2 dives per day on the first 2 days & 1 dive per day on the last 2 days). The depths were generally 90- 100 ft & bottom times were about 80 min. with 20 min deco, give or take a few minutes on 100% Oxygen at 20 ft. My buddy had a more conservative setting on his preadtor, so I usually did more than was recommended on mine. I was diving VPM-B with a conservative setting of +2. I was diving Nitrox 31- 32%
I sat out in between the cave diving & a dive trip to Panama City beach for about 36 hrs. On the Panama City Beach dives, the depths ranged from 70- 100 ft & total dive time was usually about 50 min.- to 60 min. I was being more conservative & diving 31% Nitrox as Air on the computers. On a few dives I did rack up 5- 10 min of deco. On some of my 20 ft deco stops (done on back gas, no O2), I would wait & it would time down, sometimes it seemed very slowly. It would clear me & I would just begin my ascent & the next thing I see is it is saying I'm violating my obligation. I would drop back down, wait the 1- 3 min. it said I still had, clear me & do the same thing. On one dive it did this to me 4- 5 times before it cleared me of my obligation & stayed clear. I had the final deco stop depth set at 20 ft for these dives. I was confused to say the least. Either I was clear as it said, or I wasn't. I dive 2 predators, one is about 2 yrs old & the other about a year. They were both doing the same thing. I had decent profiles & good ascents, using an anchor line to control it, the water was calm, so I wasn't tossed up & down on the anchor line. Just curious about what was going on.
I sat out in between the cave diving & a dive trip to Panama City beach for about 36 hrs. On the Panama City Beach dives, the depths ranged from 70- 100 ft & total dive time was usually about 50 min.- to 60 min. I was being more conservative & diving 31% Nitrox as Air on the computers. On a few dives I did rack up 5- 10 min of deco. On some of my 20 ft deco stops (done on back gas, no O2), I would wait & it would time down, sometimes it seemed very slowly. It would clear me & I would just begin my ascent & the next thing I see is it is saying I'm violating my obligation. I would drop back down, wait the 1- 3 min. it said I still had, clear me & do the same thing. On one dive it did this to me 4- 5 times before it cleared me of my obligation & stayed clear. I had the final deco stop depth set at 20 ft for these dives. I was confused to say the least. Either I was clear as it said, or I wasn't. I dive 2 predators, one is about 2 yrs old & the other about a year. They were both doing the same thing. I had decent profiles & good ascents, using an anchor line to control it, the water was calm, so I wasn't tossed up & down on the anchor line. Just curious about what was going on.
