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Thanks Eben! I think when I put it back together I'll rotate the body so the venturi faces down the inhalation horn. I heard that can improve performance. I'm open to all advice. I am assuming I should test lever height on a full 2250 tank given the fact it breathes easier at higher pressures (I think). MarkSurfLung wrote:Wow. That one is a treasure. Congrats on a great find.
If you know where to find that article i'd love to read it. Didn't see it in the Manuals section.SurfLung wrote:Greg Barlow sent me an article that ran through the whole thing.
Interesting. When I opened this puppy up the first time I had to take the standard 7 c-clips off first. The main diaphram was an old two-stage one with the prongs flattened. It looked like it hadn't been removed ever. The hose clamps were original voit ones. The hoses, mouthpiece, one-way mushroom valves and duckbill were most definitely all original and unusable. I ended up having to replace the 2 phenolic washers as they were a leak point. Odd that someone would replace only the lever?
Hey Greg,Greg Barlow wrote: ↑Fri Dec 15, 2017 11:31 am
In my opinion, the positioning of the orifice isn’t critical. The factory setting is with the smallest port facing the inhalation horn. As the hole is smaller, the gas velocity should be higher than with the larger port. ... Greg
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