Poor safety and experience on liveaboard. Is this typical?
I recently went on a liveaboard with Nautilus Belle Aime to Socorro and was pretry surprised. Are these experiences normal? I'm really wondering so I know what to expect on future liveaboards.
1) they insisted that they analyze our nitrox, and we do not. They would do so after filling, then write the percent and initial on a piece of tape. I analyzed my own a few times after they did, and had a different reading. It was supposed to be 32% all times. One time was 27%. One of the guides apologized and said he filled it with 32% but they changed something they usually dont so when he topped it off it was air. It's not even possible this is the case. I did the math and basically it would hsve to be about 2000 psi air and 1200 psi EAN32 assumimg a 3200 psi fill. So not only did they screw up on this time, they made up some reason as to how it happened. They "caught me" analyzing my tank once and got upset. He insisted he already analyzed it. I told him I just wanted to check it anyway. He wrote 32% on it but it analyzed at 30%. He just said "O" and maked down the correct percentage. Anyway, is it normal for them to insist they analyze the tanks and you dont?
2) several divers had our of air situations. Even when people weren't running out, it wasn't uncommon to for people to surface around 100 psi. They wanted us to let them know at half a tank, 1500 psi, 1000 psi, then we should be doing the safety stop at 700 psi. I spoke with other divers and there were many times the guide would just keep going for a while after even being told they were at 600 ir 500 psi. Of course youbcan just surface and be picked up, so maybe 100 psi isnt the end of your life, but this practice doesnt seem safe. Is it common though?
3) I rented a HP tank. I checked with them before arriving and they said they fill to the full service pressure of ~3500 psi. I only got one fill at 3500 and it was the last dive of the day so I know their system is capable. All others were 3100-3200. This is because they fill their tanks backward. They were filling about 27 Al80s so they cooled to 3000 psi, then filling the steel HP tanks last. Hot, they only filled to 3100 typically because they already drained their bank. Because they were filled last, right before gearing up, they were a very hot 3100 so around 2900 by the time we hit the water. First, I tried explaining to them why they couldnt give the HP tanks a full fill and suggested switching the order. I was hoping it was an oversight but they would adjust once they realized it. Not the case. After a few more dives, I asked if they would at least fill my steel tank to whatever they were filling ALs to first. Then it could cool by the time all others were filled and be topped off. That went nowhere. Anyway, is it typical for them to fill backwards like this?