<non vintage>Mistral IP settings

[Bryan]

Right out of the bag did any of you take an IP reading on you new USD Mistral? Curious to know what it was???.......I have not done mine yet but I'm going to check it out this weekend....

[shackle]

No, but I'll check this weekend. All I know right now is the DA you converted to a Phoenix breaths a lot easier. BTW, Bryan I had the box rechromed and put one of Jerry's labels on it and it looks brand new. Do you know anyone making vintage counterfit regulator boxes?

[Nemrod]

I cannot answer that question but I have a suspicion that Aqua Lung is sending their regulators in a detuned state for some reason. That plastic fantasitc unLegendary I purchased breathed like I was sucking marbles through a straw. I took it back and told the place I bought it from to either make it breath properly or give me my money back or a new one. He got me a new one and it did the same thing. At this point I told him to find out what was wrong. He kept it and a few days later I picked it up and now it breaths more like I expected it to. Unfortunately he was out of town, the shop owner, so I do not know what he did. I did give him a stern warning not to touch it with pliers or hammers and apparently he took that to heart. I suspect the IP was way to low at leastt in part. Maybe this is why the new Mistral I used also breathed like an old worn out Healthways. Maybe.

Nemrod

[luis]

I cannot answer that question but I have a suspicion that Aqua Lung is sending their regulators in a detuned state for some reason. That plastic fantasitc unLegendary I purchased breathed like I was sucking marbles through a straw. I took it back and told the place I bought it from to either make it breath properly or give me my money back or a new one. He got me a new one and it did the same thing. At this point I told him to find out what was wrong. He kept it and a few days later I picked it up and now it breaths more like I expected it to. Unfortunately he was out of town, the shop owner, so I do not know what he did. I did give him a stern warning not to touch it with pliers or hammers and apparently he took that to heart. I suspect the IP was way to low at leastt in part. Maybe this is why the new Mistral I used also breathed like an old worn out Healthways. Maybe.

Nemrod

At least one my LDS checks and often re-tunes brand new regulators before they leave the shop. The shop I am thinking of is a Scubapro dealer and several others, but not Aqua Lung.


I will try to get some IP readings (I have a couple of them things) and I will look up what it says in the repair manual.
I have a paper copy of the repair manual, but will try to get a PDF copy.

[Bryan]

I did give him a stern warning not to touch it with pliers or hammers and apparently he took that to heart.
Nemrod

You better watch out or you will get banned from the Florida Springs and your local LDS....

[Bryan]

I will try to get some IP readings (I have a couple of them things) and I will look up what it says in the repair manual.
I have a paper copy of the repair manual, but will try to get a PDF copy.

Would be good info to have Luis, Thank you.......If you can get PDF's I'll have Rip post them in the download section....

CANT WAIT TO DIVE MY DREAMY NEW MISTRAL AT SDIV !!!

[jamiep3]

I know when I got mine, my LDS guy tweaked it a little. I never thought to look to see what he set it at.

[eskimo3883]

Hi,

My buddy had his Mistral looked at. The dive shop re-set the first stage to 135 psi but I do mot know what it was stet at out the door. I thought this pressure was a little low but he says it is working much nicer.

[shackle]

Mine is at 130. I contacted Todd Anderson at Aqualung's engineering Dept. and They recommend 135 + or - 5psi.

[Bryan]

Mine is at 130. I contacted Todd Anderson at Aqualung's engineering Dept. and They recommend 135 + or - 5psi.

Well they are going on the conservative side IMO... Good info

[shackle]

I like your idea of cranking it up 'til it free flows then backing it back down a bit. Think I'll give it a try.

[simonbeans]

The new Aqualung Mistral I just bought through Luis has an IP of 145 psi. I measured it today. The tank pressure was 1400 psi, which may or may not mean anything. I do not plan on diving it, as I have dived one before and didn't like the hoses/mouthpiece. I will put it away like the Edsel it is.
Allan

[luis]

Wow, I am surprise Allan's Mistral has so a high IP. I even wonder if your gauge may even be a bit off. Have you ever checked against another gauge?


The manual does recommend 135 + or - 5 PSI.

I agree with Bryan in that it seems to conservative.
I understand in a mass production environment they rather err in the side of not having any chance of a free flow at the expense of easier breathing. But, it can be easily find tune on an individual basis.

For the most part I tune my Royals to 140 to 150 PSI (or even a bit higher) and I tend to believe that the new Mistral will probably work well in a similar range.

Just increase the IP until it leaks, take note of the IP and back it of about 5 psi (some people recommend 1/4 turn, etc).

When I am traveling I often detune my Royals just a tad just to avoid having to mess with it during vacation. I just back the IP a few PSI.

[Bryan]

I agree with Luis 100%......Mine was 132-135 psi out of the bag. It stopped liking me around 160....but around 150 we came to a setting we could both agree was good.

[Bryan]

The new Aqualung Mistral I just bought through Luis has an IP of 145 psi. I measured it today. The tank pressure was 1400 psi, which may or may not mean anything. I do not plan on diving it, as I have dived one before and didn't like the hoses/mouthpiece. I will put it away like the Edsel it is.
Allan

Allan, do not put your LaSpirotechnique Royal Mistral in the same room as the new USD one.....Two go in .....One comes out......