Regulator test rig you don't need to suck.

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I joined the no-suck club! That's a needle valve.

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:thumb: Looks similar!

I assume those are intake vents in the end by the speed controller (oh, just saw the ones on the top too)? Yeah, the vacuum pumps needs to get air in that gasketed box...
 
Nice, can you get to 3” of water with your pump?
 
:thumb: Looks similar!

I assume those are intake vents in the end by the speed controller (oh, just saw the ones on the top too)? Yeah, the vacuum pumps needs to get air...

Yeah, I put a few additional intake holes in the wall of the case at the end by the needle valve since the opening to the needle valve is so close to the wall. Probably not necessary.
 
Nice work!
 
https://www.shearwater.com/products/peregrine/

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