New too me Mistral

Please register or login

Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

Benefits of registering include

  • Ability to post and comment on topics and discussions.
  • A Free photo gallery to share your dive photos with the world.
  • You can make this box go away

Joining is quick and easy. Log in or Register now!


ScubaBoard Supporter
ScubaBoard Supporter
Reaction score
# of dives
1000 - 2499
Afternoon all, hope all is well with you.

I recently acquired a USD Mistral double hose to add to the other 2 DAAM's (yes, i was warned). Anyway, it looks great.

This reg, as best I can tell, is a 1959, almost all original, West Pico, Mistral. I say almost all original because it doesn't have the original yellow tinnerman hose clamps, just the black plastic ones and it's missing the yoke screw. Other than those issues it's immaculate. The wear on the diaphragm plastic from the lever is only visible in one spot and only in one orientation. The hoses were original yellow and so was the mouthpiece as far as I can tell.

Interestingly I believe this was somebody's display. I think this because when I received the reg I noticed there was something in the hoses. It turned out to be a piece of coat hanger that looks like was used to hold the hose loop in some desired position. Interesting.


  • PXL_20221013_194429511.jpg
    130.9 KB · Views: 58
  • PXL_20221013_194442825.jpg
    116.3 KB · Views: 50
Here's a few from the inside. Any idea why the duckbill had a staple in it?
One question. Is there a special tool that makes disassembly more secure than a crescent wrench clamped in a vice? That always seems a little sketchy trying to hold stage that way.

Thanks. I'll keep y'all updated on the progress.
It looks in good shape. It'll be nice to dive. I have no idea what the staple is fore, but it's surprising that it hasn't rotted.
There was a special tool for holding those regulators and I've seen what I think are replicas for sale from time to time. I used this type of wrench wrapped in tape and held in a vise. This may be the adjustable you're referring to.


  • Screenshot from 2022-10-17 16-38-47.png
    Screenshot from 2022-10-17 16-38-47.png
    91.9 KB · Views: 51
Hook it up see if it leaks.turn the valve off check later see if its still holding air.If it is leave it. By the way that staple is original !
Hook it up see if it leaks.turn the valve off check later see if its still holding air.If it is leave it. By the way that staple is original !
Thanks for the info. I thought I might have an original regulator... But what was the purpose of the staple?
manufactured that way!
Thanks. Makes no sense to add a staple but it's nice to know it's original.

Most of the hoses and rubber were rotted so I'll be replacing with silicone. Duck Bill too. Don't think I'll staple it though.

Top Bottom