Twin hose

[colin]

Hi I am Colin and have just joined.

A friend has just given me a Nemrod Snark 111 Silver reg.
I would love to know if it can work up to 3000psi.
Also if i fitted it to a modern tank, how would i purge it?

I have been diving for over 20 yrs,and have never used on.
How would you use it. Who would test it?

Any help would be great.

Thanks
Colin

[shackle]

Welcome to the forum Colin. Your Snark III will handle 3000 psi. When you ask, "How would I purge it?", are you asking how you release the air pressure to get the reg. off the tank or how you clear it if it gets flooded underwater? I would not suggest you use it until you locate someone in your area that is familiar with diving double hose regs. A "good" instructor should know. You can send it to Dan here at Vintage Scuba Supply and he can rebuild it. Read through past posts in this forum under diving instruction and technique. A lot of of your questions can be answered there.

[colin]

Hi,

Thanks for the reply.

All i want to do at the moment is try it on one of my tanks to see if it works.
I would need to know how to release the air pressure.
Dont want to dive with it yet.

Thanks,

Colin.

[ralphl]

Purging for removal is really easy...turn the air off, then take a breathe from the reg to reduce the pressure and it is good to go.

As was previously said, though, find someone to give you some tips before diving a DH...hose clearing needs some practice. They are great to use, easy to dive as long as you know the techniques.

These things are really fun to use...enjoy.

Ralph

[luis]

colin said:

Hi,

Thanks for the reply.

All i want to do at the moment is try it on one of my tanks to see if it works.
I would need to know how to release the air pressure.
Dont want to dive with it yet.

Thanks,

Colin.

Close the valve and suck the air for the regulator.


To purge the mouthpiece in the water (lets say a shallow pool) just blow it or raise the mouthpiece above the regulator diaphragm. When blowing it sometimes help to tilt your head so the mouthpiece exhaust valve (the left) is at the lowest end.

[duckbill]

Colin,
Congratulations on your Snark acquisition, and welcome to THE forum.

A WORD OF WARNING: NEVER breathe air directly from the regulator inhalation "horn" (i.e. without a hose attached).

Luis mentioned a "shallow pool" because that is where you need to start. You will use the same procedure at depth.

The main thing with double hose regulators is positioning relative to your lungs. You need to wear the regulator low on your back.

Like 'shackle' said, try to find someone near you who can coach you visually. If you can't find such a person, try to get ahold of some of the old dive literature which covers double hose regulator diving procedures. I don't think Snark parts are too easy to find, though. Maybe someone here can help with further information on parts and servicing for it.
Feel free to ask away here with any questions you might have. We are happy to help when we can!

Have fun with your snark, and get those bubbles behind you!

[kgehring]

Thats funny! Kinda like sucker bait.

Anyway, I have resorted to overseas for a couple of Nemrod parts I needed in the past. I dove one one time and it performed very good.

[william]

Hi Colin And >>>--> Welcome to the Vintage Scuba Supply Forum too. MAN, are you in for a Real Treat when you finally use your Double Hose, ha, ha. You can actually Hear the Fish and other aquatic animals Talking and Chattering out Loud when you dive with the double hose. Also it is Perfect when useing a Camera since all the Exhaust Bubbles are behind your back away from your eyes and the Camera Lens. Pictures of mostly Bubbles are a waste of expensive Camera Film. Many professional Underwater Photographers use a double hose regulator Only when takeing pictures. There is a >>-> World Of Difference between the Single Hose and the Double Hose Regulators with ALL the Pluses +++ on the double hose. Also it just looks COOL and draws a lot of Attention from Other People when you are diving with it. If you ever buy a Double Hose with a Hooka Attachment Outlit, like a U.S.Divers DA Aquamaster or US Divers Royal Aquamaster, which is the very Best Regulator, you can then attach a Single Hose Regulator to it to use as an Emergency Back-Up Regulator when Buddy Breathing is necessary. You can also get a Banjo Fitting from Broxton Chuck, here at the Forum, so you will also be able to attach a Tank Pressure Gauge to you Regulator when it is mounted to your Scuba Tank and always be able to keep an eye on your scuba tanks Air Pressure, which is extra nice and much Safer when diving deep. Many of the better Dive Shops also sell the brand new Aqua Lung "Mistral" Double Hose Regulator and they would be able to give you a Class in Proper Safe Use by a Certified Instructor then. OH, Many people are Very Prejudiced against the Double Hose Regulator, simply because they have NEVER used one, ha, ha, Really Amazing to see and hear such Utter Nonscence!!! You may want to email Dan Barringer, the owner of the VSS. He probably has some Very Good Literature on the proper use and the normal maintenance of your double hose Snark Regulator. Like useing the Quick Change Hose Clamps Dan sells too, so after an Ocean Dive you can easily remove the Hoses to rinse & dry them out good after a Saltwater Diving Trip. That will greatly reduce not only corrosives such as salt but also keep Bacterial Growth from getting started in your double hose regulator. If you can go to any of the Vintage Dive Trips, like the Lake Wazee Diving Trip that Dan has each year, I am sure any of the guys would be Happy to assist you in the safe use of a Double Hose Regulator. Take good care and try not to take any chances, nor any diving but Very Shallowwater diving untill you are sure you can safely use the Vintage Double Hose Regulator under any conditions, especially Buddy Breathing. William