Tamas
Contributor
The 119's are 41lbs while the 130's are 43 lbs
Twin 108s, 119s, or 130s for wrecks?
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Life-Is-Good-Diver
Contributor
brianstclair:
Brian, My PST 100's doubled up, with my BP /Wing set up weighed in at 113 lbs full, and my 130's weighed in around 125 lbs if I remember .
I'm not sure if you ever used the older style LP 104's , but those were heavy !!
If your cave diving, and just carrying a set of 130's on your back, there heavy just walking into the water, but try getting up onto a rolling boat, carrying deco mixe's, as well as canister light's, reel's, and eveything else, and man, your heavy regardless!!
In all honesty, I found a set of PST 100's will do most of my diving, I can dive them down to 180', and swim them in through peacock, peanut tunnel, and come out with plenty of air. I love my 100's !!
If i can figure out how to shrink my photo KB to less then 200 kb, I'll upload some pic's of my set up
wreckedinri
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FLTEKDIVER:
I couldn't say it better myself. Do a few dives on a pitching and yawing boat up here in New England (as they do most of the time) and you'll want the smallest cylinders that will do the job. Doubled, they are compact, manageable, and carry enough gas for dives to the 200' range. Most of mine are around 160 to 190fsw. No need to tempt fate with radical overfil. If you need a bit more simply nestle a 40 between them or go to 80 slings. I'm just a puny little weakling and getting a bit long in the tooth (feeling it anyway!) so I'm past strapping a refrigerator to my back to have fun
!Just my $.02
Dennis
brianstclair
Contributor
Points well taken, and thanks. I'm glad to have the 130, since I'm only diving a single right now and I want all the air I can carry in a single tank, but I'll look hard for maybe some used 95s or something in that range when I'm ready to go to doubles.
Brian
Brian
PerroneFord
Contributor
I'm 6'0 235. When I put on the 95s, I felt they were about the perfect size. Not too heavy, not too long. I had thought about 108s (and still may go there) but 190cuft is a LOT of gas for a basic dive. Add a AL80 stage and you are in the same boat as the guy with 2 130s, but with a more flexible package.
Solitude Diver
Contributor
You need to figure out how much air you need, and get the tank to suit. Granted there may be a limit to how much you can carry, so figure out what you need and get the closest size you can handle up to that point.
In wreck diving you need to calculate your air consumption at your intended depths, figure out your maximum bottom time (and back gas deco time if applicable) and then add 50% to that for emergencies. That is the size tank(s) you need (minimum).
Now about handling them .I am 64 245 lbs, and have been a sheet-rocker in construction for 22 years. I am in pretty good shape (for the shape Im in).
I also dive the twin HP 130s because I have a .78 working sac rate and love long deep dives. I need the air. However, these things are still very hard to manage when climbing into a boat or up hill shore climbs after a dive. I have intentionally used them on even my shorter fun dives for the last 80 +/- dives (mostly anyway) just to get used to them, so they are second nature to carry. They are still a ***** to handle above water. (Although I can probably do cart wheels with my single 130 now).
Dont get an unnecessarily large set if you wont need them. Get tanks based on your air needs. Plus mine with a back plate weigh in at about 145 lbs dry when set up (I weighed them). That makes me fairly top heavy, and I need to keep them high enough for valve shut downs (another subject). This means lowering my weights (via weight and trim) to offset my trim.
Note: Air does have weight, and the difference between my full 130s and empty is a lot (cant remember exactly but you can find the info on the internet). I have to dive at least 10 lbs heavy at beginning, to ensure that I can stay down if the tanks are at 500 psi. I have to put the air to compensate for this in my BC (it would not be a good thing to put it in my drysuit). You now have to learn to manage the BC and the drysuit at the same time. You do get used to it, but it is something to think about. The bigger the tanks, the more this problem exists due to the difference in weight from full to empty.
Now if you do go for bigger tanks, and think you might not be able to swim them up, you may consider a double bladder wing. That is what I use. I have dual 95 lbs of lift. (You can only use one at a time). I keep the extra inflator hose tucked behind me ready to go in an emergency if the primary bladder fails. Your dry suit (if you use one) would also help in an emergency, but may not be sufficient as full redundancy to the BC. If you dont dive dry, then a dual bladder is very advisable (IMO) for redundancy.
Hope the extra 1-1/4 cents helps.
-Steve
In wreck diving you need to calculate your air consumption at your intended depths, figure out your maximum bottom time (and back gas deco time if applicable) and then add 50% to that for emergencies. That is the size tank(s) you need (minimum).
Now about handling them .I am 64 245 lbs, and have been a sheet-rocker in construction for 22 years. I am in pretty good shape (for the shape Im in).
I also dive the twin HP 130s because I have a .78 working sac rate and love long deep dives. I need the air. However, these things are still very hard to manage when climbing into a boat or up hill shore climbs after a dive. I have intentionally used them on even my shorter fun dives for the last 80 +/- dives (mostly anyway) just to get used to them, so they are second nature to carry. They are still a ***** to handle above water. (Although I can probably do cart wheels with my single 130 now). Dont get an unnecessarily large set if you wont need them. Get tanks based on your air needs. Plus mine with a back plate weigh in at about 145 lbs dry when set up (I weighed them). That makes me fairly top heavy, and I need to keep them high enough for valve shut downs (another subject). This means lowering my weights (via weight and trim) to offset my trim.
Note: Air does have weight, and the difference between my full 130s and empty is a lot (cant remember exactly but you can find the info on the internet). I have to dive at least 10 lbs heavy at beginning, to ensure that I can stay down if the tanks are at 500 psi. I have to put the air to compensate for this in my BC (it would not be a good thing to put it in my drysuit). You now have to learn to manage the BC and the drysuit at the same time. You do get used to it, but it is something to think about. The bigger the tanks, the more this problem exists due to the difference in weight from full to empty.
Now if you do go for bigger tanks, and think you might not be able to swim them up, you may consider a double bladder wing. That is what I use. I have dual 95 lbs of lift. (You can only use one at a time). I keep the extra inflator hose tucked behind me ready to go in an emergency if the primary bladder fails. Your dry suit (if you use one) would also help in an emergency, but may not be sufficient as full redundancy to the BC. If you dont dive dry, then a dual bladder is very advisable (IMO) for redundancy.
Hope the extra 1-1/4 cents helps.
-Steve
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