Which Booster pump...

Caver

As far as Boosters go I am a

The way I see it I have the following options

1. Jetsams portable unit
2. SDS new O2 booster pump
3. a recon haskel

The group I go diving with always go to our LDS but we reckon the amount we spend we could do it our selves cheaper - one of the guys can source our O2 trade and I got lumbered with buying a pump.

It will be mostly used at home but occasionaly we will take it on trips with us - filling mainly our Rebreather cylinders but occasiionaly stages as well.

Can these babies also handle He?

Thanks in advance..

Beanie

well I have a baby booster
http://www.rebreatherworld.com/artic...ticle&artid=23

and it does us fine I 've even filled twinsets up with it

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EBT

The baby booster doesnt like large volume boosting. Its designed for blowing up CCR tanks, when you start doing lots of stages or Twins, you'll find yourself in a world of regular strip down and maintenance.

If you're going for regular twins, get one of the bigger jetsams or hunt around for a haskel.

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RonMicjan

for boosting up small Rebreather cylinders, the jetsam baby booster is the sweet bit of kit, and will work for HE too, but for any large volumes a larger unit will be nescessary, look at the Jetsam electric model. Let me know if you want either one, I can provide that and the fill whips also.

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decoweenie

Jeez, how long did it take you ?

I am using it for 3L and it already taken some times, so I hate to think having to wait for a twinset...

nigelh

Beware of the fact that a booster is not a scavenger.

Boosters are great for taking 150 bar and turning it into 300bar but offer them 30bar and they just sit and chuff and you wonder if the pressure gauge has stuck.

I have a Haskel 75 and I can boost to pressures that will destroy anything I own but it only has a 20cc cylinder so 150bar supply is 3L surface per stroke and one bar into my 3L rebreather tanks but 50bar in and a 12Lx2 twinset and nothing much happens.

Also I need a 6hp air compressor to run it at a reasonable speed at home.

I like the little thing, I like diving with 240bar on each side, but I still send the Js back with 50bar+ in them so it doesn't save me anything. That said I did a weeks mix diving for myself and a friend from two Js in the car and a 10/300 twinset as the power source and air top.

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nigelh

onetime

I've got one of the Jetsam Baby boosters and what others have said is accurate. For small tanks (up to the 40 I use for bailout) it works great. For bigger tanks I would go with a haskel or similar booster.

TechBlue

The Jetsam nano booster is a nice pice of equipment and as everybody points out they are really made for travelling and for breather bottles. We also carry the Hydraulics International booster which is the what SDS is selling, they are built a little heavier and they also can be ordered with the optional hand pump which can be used with out a drive gas if you should be somewhere in the wilds but make sure you bring a sherpa this option does also made the unit a little bigger and heavier to transport.
If you do a lot of flying and travelling I would go for the nano booster, for occasional travel and close to home stuff I would go with the Hydraulics Interantional.

caveseeker7

Hi Chris, didn't know you had those pumps, too.
Posted a couple of pics of the pump in the Accessories section of the gallery.

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decoweenie

I used to own a Draeger manual booster pump for the military (pictures on Oxycheq website) and saved a lot of money not having to go to the gym the entire time.

No idea how the SDS pumps operate, but if it is only working in the 50-bar differential like the Draeger then the diver would have to do a multi-stage boost job. This means boosting from, for example, 100 bar to 200 bar will need to be done in 2 stages: from 100 to 150, then 150 to 200. This requires an intermediate storage tank, then swapping out the hoses for the final boost.

So either do that or just plug in the Jetsam booster and be done. All you need is some drive gas from the remain of used tanks of your OC buddies.