I've been thinking of selling my LP108's to buy HP120's - What do you think?

[00wabbit]

I've got 2 Faber LP108's
These are my only tanks and I dive them as singles.
I have about 45 dives on them.

I dive with some guys that have 120's and guys that have doubles so often I am the first to run low. I am newer diver (65 dives) too and my air consumption isn't the greatest but it has been dropping a lot lately as I have been feeling a lot more comfortable underwater. Even as it drops I doubt I will ever be one of those guys who can dive for an hour with 500psi.

I originally bought these thinking I could get overfills on them and carry tons of air. The few times I have had overfills to 2900-3000 I have really enjoyed the extra air
Practically though living in the midwest the shops seem reluctant to overfill too often and I think if I just had 120's I wouldn't have to worry about asking.

I know the argument is that the shops will have a harder time getting a proper fill to 3500psi then 2640psi, but if they underfill the 120's occasioanally I really wouldn't be much worse off than my 108's I currently have.

Also I think the smaller diameter tank would mean less of a profile to push through the water. (This is a minor thought as my personal profile isn't that small in the water anyway )

In the future - towards the end of this year or maybe the beginning of next I may want to double up these tanks - so that is something I should keep in consideration.

I got my tanks at a good price so I don't think money will be too much of an issue to consider here.

So - that is what is rattling around in my head this week. What are your thoughts on my logic?

 

[xspect]

Those 120 are monsters weigh wise.

 

[00wabbit]

Lp108s are monsters in their own right.

 

[elan]

HP120 are very long @ 28" so if you are 6'4+ they could be fine otherwise might be too long

 

[00wabbit]

I'm 6'2"

 

[lowviz]

You may really like the HP 120's, being 6'2". Try one first, they have nice buoyancy characteristics. Big gas swing, weight yourself so that you are about 4# negative at 500 psi.

 

[Keith.M]

You may really like the HP 120's, being 6'2". Try one first, they have nice buoyancy characteristics. Big gas swing, weight yourself so that you are about 4# negative at 500 psi.

Just curious. Why would you want to be 4 lbs negative with 500 psi? I thought ideally you should be neutral at 15' with 500 psi.

 

[lowviz]

00wabbit please pardon the hijack, -good question worth answering.

(500/3442)(120 cuft) * (0.075#/cuft) = a bit more than a pound of gas in a 120 at 500 psi. So that puts me 3# negative on an empty tank. I hate the feeling of fighting "corking", especially if I was in a bad way and wanted to suck all remaining gas down at 15'.

Doing so would put me about 3# negative, and I can swim 3# up even on my worst day.

 

[Max Speed]

I am 6' and love the 120s. As you mentioned a short fill is no worse than where you were. They are only a few lbs heavier than an AL 80.

Sent from my SPH-L710 using Tapatalk 2

 

[Herb-alaska]

I am 6' 2" 250 and so I also have a big foot print in the water. I own and dive Lp 85, lp 108, HP 100, HP 119, hp 120 HP 130 and the one I own and don't dive is the AL HP 100. The only tank I would not recommend is the AL HP 100. The HP 120 is a great tank you will love it. Keep the lp 108's it never hurts to have move tanks unless the partner says no