I didn't miss that part. If you see I pointed out that the tanks have the
same buoyancy characteristics underwater which is neutral when empty. So
logically if you didn't need a weight belt for the LP you wouldn't need one
for the HP. Or what am I missing?

Steve



on 8/4/01 7:50 PM, Jim Cobb at cobber@ci*.co* wrote:

> You missed the part about "don't need a weight belt". I don't like weight
> belts, they are just one more thing to screw up and they mess up the air
> distribution in your drysuit. You either wear the weight you need on your
> back or you add it on with a weight belt, so there are no savings when
> climbing up a ladder with HP's.
> 
> Jim
> -------------------------------------------------------------------
> Learn About Trimix at http://www.cisatlantic.com/trimix/
> 
>> From: Steve <sfkenney@ea*.ne*>
>> Date: Sat, 04 Aug 2001 11:04:39 -0700
>> To: Jim Cobb <cobber@ci*.co*>, Daniel Smith
>> <Daniel_Smith@co*.co*>,
>> <techdiver@aquanaut.com>, <dlhedrick@pb*.co*>
>> Subject: Re: tanks
>> 
>> on 8/3/01 11:12 AM, Jim Cobb at cobber@ci*.co* wrote:
>> 
>>> There are some who swear by HP120's but once they try a set of LP104's they
>>> don't go back. Why are the 104's so perfect? Buoyancy characteristics. You
>>> can remain neutral throughout your dive and avoid a weightbelt.
>> 
>> 
>> Buoyancy characteristics of tanks is definitely something to study before
>> buying. My research reveals that the Pressed Steel tank whether low or high
>> pressure all have near neutral buoyancy when empty. I thought there were
>> other reasons why you would choose the low pressure over the high. Like
>> getting full or overfilled tanks, many can't pump to 3500 psi. Also a low
>> pressure does exert less stress on o-rings. One drawback is the overall
>> weight of the low pressure tank. Empty weight is 46 lbs for LB 104 compared
>> to 31 lbs for a HP 100. An extra 30 pounds may not mean much once your in
>> the water but climbing some boat ladders is where you'll feel the
>> difference. It's tough hoisting a set of small twin HP's over your head to
>> donn let along adding another 30 pounds. <g>
>> 
>> Steve
>> 
>> 
> 
> 

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