Advokat
Contributor
Hi, is 15ltr tank worth getting,compared to 12ltr tank?should I get it for those extra 25%?thanks!
12ltr vs 15ltr.Which tank should I get?
- Thread starter Advokat
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Packhorse
Contributor
double post
Packhorse
Contributor
I had a 15L and sold it to make way for twin 12L's.
You must also take ito account what tank your buddy uses and what their SAC rate is commared to yours. No point having a bigger tank if they have a smaller tank and a larger SAC or vice versa. Unless they have 2 10L tanks and you can make do with 1 15L for both dives.
For my single tank dives I now use 13.6L tanks and they last me longer than my buddys 15L.
The shape of the tank may also have some bearing on your decision. 15's are short and fat while 12's are usally taller and thinner. (you can get shorter fat ones too but no good for doubles).
If that didnt help just buy a 15L
You must also take ito account what tank your buddy uses and what their SAC rate is commared to yours. No point having a bigger tank if they have a smaller tank and a larger SAC or vice versa. Unless they have 2 10L tanks and you can make do with 1 15L for both dives.
For my single tank dives I now use 13.6L tanks and they last me longer than my buddys 15L.
The shape of the tank may also have some bearing on your decision. 15's are short and fat while 12's are usally taller and thinner. (you can get shorter fat ones too but no good for doubles).
If that didnt help just buy a 15L
The reason I want to get a 15ltr tank is to have more air,as I use air heebs quickly.I dont have a regular buddy yet,as I'm new to the area and dive club I'm diving with,but I've been diving at new place with experienced divers,who've been doing it for years and they consume heebs less air as I do.
the other thing...at dive shops they fill 15ltr tanks with same pressure as they fill 12ltr ones?
the other thing...at dive shops they fill 15ltr tanks with same pressure as they fill 12ltr ones?
Packhorse
Contributor
They will fill to the same pressure assuming they are rated to the same pressure. Some shops may charge you more tho.
H2Andy
Contributor
keep in mind that the bigger the tank, the more effort it takes to "push it" through the water ...
i guess that's not really a problem with a single tank ... it adds up with doubles
if you want the larger tank, go for it
as for fill pressure, tanks can be rated for different pressures .... for example, here in the States you can get a low pressure 100 cf tank that is filled to 2640 psi or a high pressure 100 that is filled to 3442 psi
but filled to their rated pressure, they will hold the same volume of gas (i.e. 100 cf)
i guess that's not really a problem with a single tank ... it adds up with doubles
if you want the larger tank, go for it
as for fill pressure, tanks can be rated for different pressures .... for example, here in the States you can get a low pressure 100 cf tank that is filled to 2640 psi or a high pressure 100 that is filled to 3442 psi
but filled to their rated pressure, they will hold the same volume of gas (i.e. 100 cf)
Packhorse
Contributor
Im sure the 12's and 15's Advokat is talking about will be fabers rated at 232 bar. We dont really get into the LP vs HP tanks in NZ and OZ.
H2Andy
Contributor
Packhorse:
ah, in that case, yeah ... both tanks will be filled to their rated pressure, but the bigger one will hold more gas
some shops here charge a flat rate, some charge per cubic foot
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