Probably a dumb question but...

[Flatliner]

When I attach an HP hose to an SPG do I need to use some kind of lube on the little o-rings? If so, what should I use.

[awap]

Yes. I use christolube but scilicon grease will work in a pinch. That connection is not water tight nd those o-rings are dynamic, so I lube the threads of the connection, the spool, and both o-rings fairly heavily.

[Flatliner]

Thanks,

Do you know where I can get the Christolube. I don't see it on ST's sight.

[skdvr]

My LDS told me that Christo Lube is overkill unless you are using anything over 40% O2. I just used some silicone grease on mine...

Phil

[rfreddo]

Sorry to hijack, but I have a related question. Do the o-rings on the hoses need to be lubed when attaching to the first stage? How tight should first stage / hose connection be?

[datamunk]

christolube can be found in local dive shops normally, or, id try googling. ST can probably special order.

i always put a little lube (either silicon or cristolube) on the threads and oring hooking to first stage, and you want them tight but dont overtighten them. once it gets snug give it a nice lil "push" and youll be good.. make sure you power it up with some air and spray for bubbles!

[ScubaToys Larry]

I wouldn't bother with the christo lube unless you are running very high O2 deco bottles. Just plain ole' o-ring lube will do you: http://www.scubatoys.com/store/detai...ODUCT_ID=Olube

And for anyone who is not familiar with the o-rings he's talking about, here is an article I wrote about it:

http://www.scubatoys.com/store/joelarry/hpspool.asp


And no, on the hose to 1st stage end... not really necessary as they are not dynamic... they just sit there.

[skdvr]

Originally Posted by ScubaToys Larry

I wouldn't bother with the christo lube unless you are running very high O2 deco bottles. Just plain ole' o-ring lube will do you: http://www.scubatoys.com/store/detai...ODUCT_ID=Olube

And for anyone who is not familiar with the o-rings he's talking about, here is an article I wrote about it:

http://www.scubatoys.com/store/joelarry/hpspool.asp


And no, on the hose to 1st stage end... not really necessary as they are not dynamic... they just sit there.

I agree espically with the 1st stage. No lube there!

Phil

[JugglingMonkeys]

A related question - are there o rings anywhere that should NOT be lubed?

Thanks

[rfreddo]

Even more basically, where exactly are the o-rings I need to be prepared to replace? My guess is there is a ring on all hose attachment points, and I know I've seen a lot of discussion of the tank o-ring, but I'm not really sure where that one is. Is it on the first stage or on the tank valve? Others?

Thanks!