Doubles Tanks Must Have Same Height???

[amascuba]

let me just say i'd take anything they say diving-wise to the bank

I'm pretty sure that you didn't mean me. I should have specified that aluminum tanks are molded from molten metals. I watched a cool video from Luxfer recently that went through their process of making aluminum tanks.

 

[roakey]

You are dealing with a typical shop monkey. He's an idiot, find another store.

Ditto.

My PST 104s differ by about 1/4" so they lean just a tad if you look at them carefully when they're sitting on the ground. You of course don't want a 2" difference, but a little is just fine. You line up the valves, not the cylinder bottoms when you assemble them.

Roak

 

[dhampton82]

So theoretically, you could double up a Luxfer 80 and a Catalina S80?

 

[Thalassamania]

Find a new LDS, or at least discuss this releveation with the owner.

 

[JeffG]

Perhaps I'm not being clear. I'm not saying that close enough probably isn't good enough. I am saying that the following quotes are inaccurate:

You are dealing with a typical shop monkey. He's an idiot, find another store.

Please. Tell me where I am inaccurate? I would love to know.

 

[Robert Phillips]

So theoretically, you could double up a Luxfer 80 and a Catalina S80?

You could, but you would have a hell of a time with balance issues as the Catalina is a little heavier than the Luxfer.

Oh, and congratulations on the quitting smoking!

 

[xiSkiGuy]

Please. Tell me where I am inaccurate? I would love to know.

As it is an opinion, I suppose it doesn't have a degree of accuracy.

In so much as you are calling someone an idiot just for following the recommendations of his cylinder supplier, I disagree with you.

I really think you are letting this business about being right one time back in 2005 regarding pee valves and quick disconnects go to your head.

 

[GDI]

let me say I just have to agree with Jeff on this find another store.

You can assemble tanks of different sizes in length. Not a good idea but it can be done

 

[The Kraken]

Theoretically speaking, the only requirements of doubling up tanks are that they have the same tank body outside diameter and the same thread sizing for the manifold/valves.

Even then, if the manifold had the same crossmember ID/OD's but the individual valves had different thread sizes for different tanks, they could still be doubled up.

But I must state that having to special order two tanks in order to put together a doubles configuration is, without a doubt, a bit over the top.

the K

 

[TomP]

similar discussion going on here. Seems differences for Worthington steels can be up to a quarter of an inch and the do try to match tanks that are being doubled.

i'll abstain from the debate as to whether or not that's a material difference