I haven’t reached 100 yet (I think I have 72 dives so far) but here is my (long) list:
- On dive 30 or so I managed to go past NDL (unplanned). To make things worst back then I didn’t know that once past NDL I had to go up FAST! I started a (very) slow ascent and by the time I reached my deco stop depth (6m or so) my (conservative) Cressi computer was asking me for 30 minutes stop! I didn’t have enough air and I stopped my deco after 25 minutes or so. The guide with a conservative computer too (Suunto) and similar profiles all this time was within NDL. This gave me (wrongly) a bit of confidence. Anyway luckily all went well. (Please note: That case has been discussed in another thread extensively and I wouldn’t like any further discussion about it here)
- Up to dive 40 or so I didn’t know that a second stage entering the water with the mouthpiece looking up would “free-flow.” I also didn’t know what this “pre/during dive” level is all about neither I knew that to stop the flow you just need to briefly block the mouth piece. I fount it all out the hard way on my first dive without a professional guide. For few moments I though the regulator was broken and our diving day was over.
- A couple of dives later my buddy’s tank valve got jammed closed while he tried to open it but actually turned it the wrong way. The plastic handle of the valve would turn but the metal part (the actual valve) wouldn’t. We didn’t have a toolkit with us. After about 20 minutes or so of trying different things out and just about before giving up for the day we used the weight belt buckle to wrap the handle and the belt itself to tighten it and turn it open. It worked!
- I think it was during the same dive and somewhere around the middle of it the dive site was pretty boring so I thought it would be a good idea to practice inflating a D-SMB (for first time outside training). Up to that point I haven’t thought that once the SMB is on the surface it is not easy/possible to pull it back down. Eventually I had to surface briefly to deflate it and bring it back down in order to continue the dive. It was a shallow dive anyway.
- After 10 or so unguided shore dives that I had a compass with me but didn’t have to use it (there were always walls to follow) I didn’t bring the compass with me and it turned out there was no wall in that region. We managed to get somewhat lost on our way back and we had to do 200 meters or so surface swim against the wind (without snorkel) to our exit point. Doable but not very pleasant.
- Once I rented a fin without a strap from the LDS (I still rent most of my equipment). Luckily I had enough tire ups with me.
- Another time I was underweight. During the dive I didn’t realize it but at safety stop I couldn’t retain my depth and I had to hold on the anchor line – luckily there was one. Usually I would put a rock or something to my pockets to increase my weight but we were too far from the bottom. Actually I spend the whole safety stop hanging upside down like a bat, holding the line.
Interestingly most of these happened during unguided dives although most of my dives have been uneventful guided ones. So many things go unnoticed when professionals handle them.
I know, it is a fairly long list of very stupid things on my side but at least now I know first hand about all these...
- On dive 30 or so I managed to go past NDL (unplanned). To make things worst back then I didn’t know that once past NDL I had to go up FAST! I started a (very) slow ascent and by the time I reached my deco stop depth (6m or so) my (conservative) Cressi computer was asking me for 30 minutes stop! I didn’t have enough air and I stopped my deco after 25 minutes or so. The guide with a conservative computer too (Suunto) and similar profiles all this time was within NDL. This gave me (wrongly) a bit of confidence. Anyway luckily all went well. (Please note: That case has been discussed in another thread extensively and I wouldn’t like any further discussion about it here)
- Up to dive 40 or so I didn’t know that a second stage entering the water with the mouthpiece looking up would “free-flow.” I also didn’t know what this “pre/during dive” level is all about neither I knew that to stop the flow you just need to briefly block the mouth piece. I fount it all out the hard way on my first dive without a professional guide. For few moments I though the regulator was broken and our diving day was over.
- A couple of dives later my buddy’s tank valve got jammed closed while he tried to open it but actually turned it the wrong way. The plastic handle of the valve would turn but the metal part (the actual valve) wouldn’t. We didn’t have a toolkit with us. After about 20 minutes or so of trying different things out and just about before giving up for the day we used the weight belt buckle to wrap the handle and the belt itself to tighten it and turn it open. It worked!
- I think it was during the same dive and somewhere around the middle of it the dive site was pretty boring so I thought it would be a good idea to practice inflating a D-SMB (for first time outside training). Up to that point I haven’t thought that once the SMB is on the surface it is not easy/possible to pull it back down. Eventually I had to surface briefly to deflate it and bring it back down in order to continue the dive. It was a shallow dive anyway.
- After 10 or so unguided shore dives that I had a compass with me but didn’t have to use it (there were always walls to follow) I didn’t bring the compass with me and it turned out there was no wall in that region. We managed to get somewhat lost on our way back and we had to do 200 meters or so surface swim against the wind (without snorkel) to our exit point. Doable but not very pleasant.
- Once I rented a fin without a strap from the LDS (I still rent most of my equipment). Luckily I had enough tire ups with me.
- Another time I was underweight. During the dive I didn’t realize it but at safety stop I couldn’t retain my depth and I had to hold on the anchor line – luckily there was one. Usually I would put a rock or something to my pockets to increase my weight but we were too far from the bottom. Actually I spend the whole safety stop hanging upside down like a bat, holding the line.
Interestingly most of these happened during unguided dives although most of my dives have been uneventful guided ones. So many things go unnoticed when professionals handle them.
I know, it is a fairly long list of very stupid things on my side but at least now I know first hand about all these...