Can i use this?
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I have 3 of them.
Use them with my vintage stuff.
As stated it just makes for a bigger tank, no redundancy.
That stuff will kill you, NOT!!!
Torque a tank valve, Really??
Bob DBF
Contributor
Yes, you can keep the reserve lever down and it stays open. The reserve only affect the left tank.
You do have to make sure the reserve is open to fill the left tank.
BTW, the reason that manifold is so popular with vintage divers is because it is the most reliable manifold that has ever been produced for double tanks. It is one solid bar with no joints that can leak. The manifold is also extremely simple, again adding to its outstanding reliability.
At the Navy dive school I saw a huge number of doubles using this manifold. Those double looked heavily used (and abused), but I am sure the manifolds were all functional. I am certain that there is no other manifold ever made that can handle that kind of abuse and continue to function without any issues.
This is not my favorite manifold, but I do recognize that it is the most reliable and rugged manifold ever made. My favorite manifold is the old Sherwood with a center outlet and a second outlet on top of one of the tanks. No isolation, just two independent outlets. There are times when independent regulators has a big advantage, but I am not a believer on the need for isolation manifolds.
You do have to make sure the reserve is open to fill the left tank.
BTW, the reason that manifold is so popular with vintage divers is because it is the most reliable manifold that has ever been produced for double tanks. It is one solid bar with no joints that can leak. The manifold is also extremely simple, again adding to its outstanding reliability.
At the Navy dive school I saw a huge number of doubles using this manifold. Those double looked heavily used (and abused), but I am sure the manifolds were all functional. I am certain that there is no other manifold ever made that can handle that kind of abuse and continue to function without any issues.
This is not my favorite manifold, but I do recognize that it is the most reliable and rugged manifold ever made. My favorite manifold is the old Sherwood with a center outlet and a second outlet on top of one of the tanks. No isolation, just two independent outlets. There are times when independent regulators has a big advantage, but I am not a believer on the need for isolation manifolds.
Torqueing the valves is the easy part. Getting the bands on so they don’t stress or bend the manifold bar is the PITA. Sure you can use them. It is no different than using a large single with one regulator except it rests on your back better.
All that said, an isolation manifold is worth considering.
All that said, an isolation manifold is worth considering.
Last edited:
captain
Contributor
The manifold is around $700 new, you can find them on Ebay for less than $100 usually. I have two sets of double 72's with that manifold I use on two tank boat dive, no hassle of switching everything to another tank for the second dive. Torque? you screw it into one tank and screw the other tank on to the manifold. Once the tanks are banded together nothing is coming lose.
halocline
Contributor
Those manifolds were originally designed (I suppose) for doublehose regs, where the reg has to be centered on your back for it to work properly. Lots of doublehose divers love those manifolds, and use them with small doubles. HP 100s (and larger HP tanks) haven't been around that long, and there's a real tradition of using double 72 (and sometimes smaller, LP tanks) sets with a doublehose reg. There's probably not much of a reason to use one with a single hose regulator, unless you have a set of small doubles and want to use them.
I really wish someone would design an isolation manifold where the gas in both tanks was protected by the hard seat in the iso valve, instead of one protected only by stem seals.
I really wish someone would design an isolation manifold where the gas in both tanks was protected by the hard seat in the iso valve, instead of one protected only by stem seals.
captain
Contributor
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